Borehole · Risk register · free tier
signalapp/signal-desktop
Free reading: not for reliance
Borehole badge for signalapp/signal-desktop
abe80d3 · 13,601 commits · 4,540 files
Issued 2026-09-25

Nothing significant. Questions worth asking about Security & Reliability Posture, Engineering Process & SDLC Maturity.

90 checks ran across 6 assessable dimensions. 3 findings are worth checking first. 14 findings, each with evidence. One dimension cannot be assessed without an acquirer.

Worth checking first

Borehole's proprietary scoring is calibrated across hundreds of repositories. Each finding here reads significant, but its check has not yet held up often enough in that calibration to rate significant on its own. If one holds when someone checks it, it is significant.

  • 05.20 41 SQL statements built from strings
  • 02.1 Change lands on the trunk with no trace of review
  • 02.3 Tests cover a thin slice of the codebase
An earlier reading. This is the survey of 2026-09-25 by borehole 0.6.1, which is what its verification code attests to. A newer reading of the same commit exists: read the newest.
Published under today's rules. The verification code attests to this reading as it was stored. This page differs from it as follows.
  • Words about people are today's: bands rather than exact shares, dates or day counts, and what the history measured rather than why.
  • 3 findings rated significant by a check that has not yet held up in Borehole's calibration are now worth checking first.
  • 4 findings from checks Borehole's calibration found wrong more often than right are no longer published.
strong adequate significant findings not assessable from a repository
Provenance disclosure does not affect any rating
0% of added lines arrived in commits declaring an AI agent as co-author
The surviving-lines measurement was not run on this repository.
0/13,429 commits declaring an agent
confidence: moderate
  • 3% of non-merge commits carry any trailer at all
  • low trailer coverage: the convention may not be in consistent use
  • no widespread author/committer date divergence
345,537 lines excluded as lockfiles, vendored or generated.
This is a lower bound. It counts what the repository declares. Undeclared AI authorship is invisible here, and a single rebase removes the trailers this rests on. Absence of a declaration is absence of disclosure, not absence of AI authorship.

Architecture & Codebase — including AI provenance

01 · adequate · ratings ↑
01.6

ts/sql/Server.node.ts is 9,826 lines, 122× this codebase's median file

adequate

The median source file here is 80 lines. 78 files exceed 1,000 lines, the largest being 9,826. Size is not a defect on its own — some problems genuinely live in one place — but these are where merge conflicts, review fatigue and single-owner knowledge concentrate, and they are the first thing that slows an inheriting engineer down.

Evidence
line-count ts/sql/Server.node.ts:1 — 9,826 lines (122× median)
line-count ts/groups.preload.ts:1 — 7,645 lines (95× median)
line-count ts/state/ducks/conversations.preload.ts:1 — 7,556 lines (94× median)
line-count ts/models/conversations.preload.ts:1 — 6,250 lines (78× median)
line-count ts/textsecure/WebAPI.preload.ts:1 — 5,364 lines (67× median)
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

Engineering Process & SDLC Maturity

02 · adequate · ratings ↑
02.1

Change lands on the trunk with no trace of review

adequate worth checking first

In the last 24 months, 32 of 2,600 commits (1.2%) carry any trace of review: a merge, a pull-request reference, a Reviewed-by or Reviewed-on trailer, a Closes/Fixes reference, or a maintainer's sign-off on someone else's change. Every common review workflow leaves at least one of those, so either review happens somewhere this history cannot see, or it is not happening. A buyer should establish which before relying on the review story they are told.

The check that found this reads significant, but it has not yet held up often enough in Borehole's calibration to rate a finding significant on its own. If it holds when someone checks it, this finding is significant.

Evidence
reviewable-arrivals 32 of 2,600 commits in the last 24 months carry review evidence; 5.7% across all 13,601
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

02.3

Tests cover a thin slice of the codebase

adequate worth checking first

3 test files against 2,904 source files (0.1%). This does not measure whether the tests are good, only whether enough of them exist for the codebase to be changed safely by someone who did not write it — which is exactly the situation after an acquisition.

The check that found this reads significant, but it has not yet held up often enough in Borehole's calibration to rate a finding significant on its own. If it holds when someone checks it, this finding is significant.

Evidence
test-file-ratio 3 test files / 2,904 source files
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

02.15

8 committed .only switches other tests off

adequate

8 test files commit a focused `.only`, which runs that test and silently skips the rest of its suite. 8 skip markers across 2 of 348 test files. Each is a failure somebody chose to stop seeing; the question is whether anyone is tracking them.

Evidence
.oxlint/rules/noDisabledTests.test.mjs .oxlint/rules/noDisabledTests.test.mjs:14 — committed .only: other tests do not run
.oxlint/rules/noDisabledTests.test.mjs .oxlint/rules/noDisabledTests.test.mjs:15 — committed .only: other tests do not run
.oxlint/rules/noDisabledTests.test.mjs .oxlint/rules/noDisabledTests.test.mjs:17 — skipped test
.oxlint/rules/noDisabledTests.test.mjs .oxlint/rules/noDisabledTests.test.mjs:18 — skipped test
.oxlint/rules/noDisabledTests.test.mjs .oxlint/rules/noDisabledTests.test.mjs:22 — skipped test
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

02.24

6% of recent commits change more than 2,000 lines

adequate

142 of 2263 commits in the last 24 months changed over 2,000 lines of code, not counting reformatting, renames, vendored or generated code. A change that size is rarely reviewed line by line. Ask how they were reviewed, and what made them that large.

Evidence
git log --numstat 142 commits over 2,000 lines
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

Organization & Key-Person Risk

03 · strong · ratings ↑

No finding. 9 checks ran and none fired; the rejection log below says why each did not.

Product & Engineering Maturity

04 · adequate · ratings ↑
04.19

10% of bug fixes add or change a test

adequate

Of 459 fixes in the last 24 months, 44 touched a test. A fix without the test that would have caught the bug can quietly come back, and the suite never learns from what went wrong.

Evidence
fix commits touching tests 44 of 459
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

Security & Reliability Posture

05 · adequate · ratings ↑
05.6

1 Dockerfile runs the application as root

adequate

No USER instruction switches away from root, so the process runs with full privileges inside the container. It is a one-line fix and an ordinary expectation, which is why its absence is worth asking about: it usually says more about whether anyone has reviewed the deployment than about this container specifically.

Evidence
no-USER-instruction reproducible-builds/Dockerfile — runs as root
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

05.27

The build runs third-party code it does not pin

adequate

4 third-party CI actions are referenced by a tag or branch rather than a commit, so they run whatever that tag points to on the day; 1 step pipes a download straight into a shell. Tags have been moved to malicious commits in real supply-chain attacks, and a piped script is whatever the server returns that minute. Pinning to a commit is the fix, and it is small.

Evidence
.github/workflows/backport.yml .github/workflows/backport.yml:18 — action pinned by tag
.github/workflows/commits.yml .github/workflows/commits.yml:16 — action pinned by tag
reproducible-builds/Dockerfile reproducible-builds/Dockerfile:43 — download piped into a shell
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

05.20

41 SQL statements built from strings

adequate worth checking first

41 places in product code build SQL by formatting or joining strings rather than passing parameters. Where any part of the string comes from a request, it is an injection point. Each site needs a look; the fix, parameters, is small.

The check that found this reads significant, but it has not yet held up often enough in Borehole's calibration to rate a finding significant on its own. Opening ts/sql/Server.node.ts:9793 and the 1 other file it cites settles it. If it holds when someone checks it, this finding is significant.

Evidence
ts/sql/Server.node.ts ts/sql/Server.node.ts:9793 — SQL built from a string
ts/test-node/sql/migrations_test.node.ts ts/test-node/sql/migrations_test.node.ts:31 — SQL built from a string
ts/test-node/sql/migrations_test.node.ts ts/test-node/sql/migrations_test.node.ts:149 — SQL built from a string
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

05.21

55 shell commands built from strings

adequate

55 places run a command through a shell (`shell=True`, `os.system`, `exec` with a template) rather than passing arguments. Where any part comes from outside, it is command injection. Ask where each one's input comes from.

Evidence
ts/sql/Server.node.ts ts/sql/Server.node.ts:9086 — command run through a shell
ts/sql/Server.node.ts ts/sql/Server.node.ts:9177 — command run through a shell
ts/sql/Server.node.ts ts/sql/Server.node.ts:9766 — command run through a shell
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

05.26

30 locked dependencies have published vulnerabilities, 16 high or critical

adequate

30 of 2,336 locked dependencies match 61 published advisories in OSV, 16 of them rated high or critical. A lockfile says which version is installed, not whether the flawed code is reachable from this product, so each needs a look. Most are fixed by an upgrade, and the advisory names the version. This lockfile pins development tools alongside what ships and does not say which is which, so some of these may never reach a user.

Evidence
pnpm-lock.yaml pnpm-lock.yaml — @remix-run/router 1.5.0: GHSA-2w69-qvjg-hvjx (high), fixed in 1.23.2
pnpm-lock.yaml pnpm-lock.yaml — app-builder-lib 26.11.1: GHSA-7g7r-gx96-252g (high), fixed in 26.15.0
pnpm-lock.yaml pnpm-lock.yaml — axios 1.16.1: GHSA-gcfj-64vw-6mp9 (high), fixed in 1.18.0
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

Observability & Operations

06 · adequate · ratings ↑
06.1

No telemetry or error reporting is wired in anywhere

adequate

None of 3,586 readable files references an instrumentation, metrics or error-reporting library. If this system is in production, nobody learns that it broke from the system itself — they learn it from a customer. That is a reliability finding before it is an observability one.

Evidence
telemetry-scan searched 3,586 tracked text files for 16 known instrumentation libraries; 0 matched
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

06.9

No error reporter is wired in

adequate

Nothing in the service initialises an error reporter (Sentry, Rollbar, Bugsnag, Honeybadger or an APM agent). An exception in production reaches a person only if someone is reading the logs, which usually means a customer reports it first.

Evidence
error reporting no error reporter initialised
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

06.17

The code branches on the environment's name at 54 places

adequate

54 places outside configuration test whether they are running in production or staging. Staging then does not exercise production's code, and each deploy is the first run of those branches. Differences belong in configuration the code reads, not in the code.

Evidence
app/crashReports.main.ts app/crashReports.main.ts:12 — branch on the environment name
app/crashReports.main.ts app/crashReports.main.ts:109 — branch on the environment name
app/main.main.ts app/main.main.ts:113 — branch on the environment name
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

Fit with the Acquirer

07 · not assessable · ratings ↑

Not rated: structurally not assessable from a repository. What a person adds here.

Check it on the running system

9 checks against the running system follow from the findings above: what a buyer's engineer will try, how to run it first, and what to have ready. A paid survey of this repository includes them. See the tiers.

A paid survey of a public repository is also reviewed: a language model reads each finding against the code and withdraws only findings it judges the code contradicts, each listed with its reason. The review is a language model's reading of the findings against the code, and it can be wrong. It never adds a finding, never raises a band, and never removes a finding from a proven check or an advisory that affects the surveyed version.

What a person adds

The survey reads what the repository can show. The code cannot settle these questions, and on them this report states nothing. Each says where its answer lives: your own engineer, the company, or an assessor you choose can settle it. Questions marked measured open with something this repository shows.

Architecture & Codebase — including AI provenance

01 · full coverage
  1. measured No architecture or design document is in the tree, across 4,006 product files. Where does the design live, and who holds it? Answer lives in: The team01.38
  2. Is the architecture right for the next three years of the product? Answer lives in: Your architects, with the product roadmap01.39
  3. Were the home-grown components reasonable choices when they were made, and are they now? Answer lives in: The team's reasoning at the time01.40

Engineering Process & SDLC Maturity

02 · high coverage
  1. Is review real or a rubber stamp? Comment depth and time to approve need the pull request history. Answer lives in: The code host's pull request data02.32
  2. Is delivery planned and measured, or heroic? Answer lives in: The issue tracker: backlog, sprint history, estimate accuracy02.38
  3. How are incidents run, reviewed and learned from? Answer lives in: Tickets, chat and postmortems02.37

Organization & Key-Person Risk

03 · partial coverage
  1. measured 272 people have committed here. Which of them are you acquiring, and which are you replacing? Answer lives in: The deal terms03.29
  2. Who mentors whom, and would that survive a departure? Answer lives in: The team; review history only suggests candidates03.28
  3. Can the team grow, and who stands behind the top three contributors? Answer lives in: Recruiting data and the org chart03.30
  4. Is the seniority mix sound, and will pay survive your salary bands? Answer lives in: HR data03.31
  5. Is the pace sustainable? Commit times cannot say: git keeps no reliable local time. Answer lives in: Interviews and on-call history03.14
  6. Does the team want to stay after close? Answer lives in: Interviews03.32
  7. How are decisions made and disagreements resolved? Answer lives in: Time with the team03.33

Product & Engineering Maturity

04 · minimal coverage
  1. Can this team deliver the stated roadmap on the stated timeline? Answer lives in: The data room and the team's record of estimates04.32
  2. Does leadership know about the debt, and is time budgeted to repay it? Answer lives in: Budget and roadmap decisions04.31
  3. Is the engineering shape consistent with the commercial story? Answer lives in: Revenue, customer and churn data04.33

Security & Reliability Posture

05 · partial coverage
  1. measured 05.5 found credential-shaped strings in this repository. Was each one revoked at the provider? Deleting it from the code revokes nothing; only the provider's audit log shows that it was. Answer lives in: The provider's console and audit log05.38
  2. measured No threat model is in the tree of what looks like a running service. Does one exist elsewhere, and who owns it? Answer lives in: The security owner05.43
  3. What has actually broken, how often, and how badly? Answer lives in: Ticketing and chat05.41
  4. What did external testing find, and was it fixed? Answer lives in: Reports in the data room05.42
  5. What is the SOC 2, ISO 27001 or GDPR status, and where is the evidence? Answer lives in: Audit reports; policy files in the tree are not evidence05.44

Observability & Operations

06 · partial coverage
  1. measured Nothing in the tree backs up or restores data. How is data backed up, and has a restore ever been rehearsed? Answer lives in: The operations team06.19
  2. measured No alert rule is defined in the repository. Where are alerts defined, who receives them, and when did one last fire? Answer lives in: The alerting tool and the on-call rota06.10
  3. measured Service-level objectives are defined in the tree (ts/test-node/tslint.json). Are they met? The repository holds the target, not the measurement. Answer lives in: Production metrics06.12
  4. Are the dashboards opened, the alerts acknowledged and the pages answered? Answer lives in: Pager history and dashboard logs06.29
  5. Who carries the pager, and how often does it go off? Answer lives in: Pager exports and interviews06.31
  6. What does it cost to run, and how much headroom is there? Answer lives in: Cloud billing and capacity plans06.32

Fit with the Acquirer

07 · none coverage

Not rated: structurally not assessable from a repository.

  1. This is primarily a TypeScript codebase. Does your engineering organisation already run TypeScript in production, or would this be the first? 07.1
  2. The bulk of this system sits in _locales/, ts/, stylesheets/. Which of your existing systems would each of those have to absorb or replace? 07.10
  3. The repository carries deployment configuration (reproducible-builds/Dockerfile). Does that match your deployment and on-call model, or does it need rehosting first? 07.2
  4. What is your tolerance for the findings above remaining unaddressed for the first two quarters after close, given everything else that will compete for this team's time?
  5. Which of these systems duplicate yours, and which get retired? Answer lives in: Your architecture07.11
  6. What will integration cost, and in what order? Answer lives in: The engagement07.12
  7. Where does the team land in your organisation, and who reports to whom? Answer lives in: Your org design07.13
  8. Are there earn-outs, retention packages or contractor IP to assign? Answer lives in: Deal terms07.14
  9. Do customer contracts limit hosting, regions or vendors? Answer lives in: Customer contracts07.15

A human assessment is Borehole's own paid service, €12,000+ (total price is determined per engagement; travel billed at cost). It is not independent of this report: the same business produced both. It is a separate contract, with its own scope, terms and reliance.

Embed the badge

Tied to this commit and this date, and it fades after 90 days — an honest badge is one that expires. A repository with significant findings gets a neutral "read" badge rather than a red one: the library is where the range is visible, not someone else's README.

Borehole badge for signalapp/signal-desktop
[![Borehole](/badge/signalapp/signal-desktop.svg "Borehole free reading: not for reliance. See the full report.")](/r/signalapp/signal-desktop/abe80d3)

If you embed it: link it to the report, remove it if the report is delisted, and do not present it as a certification or an endorsement.

Was this reading useful?
Rejection log — 76 signals that ran and did not fire

Appendix: rejection log — 76 signals that ran and did not fire

Published on purpose. A signal that looked and decided not to fire has told you something, and this is the calibration data behind every threshold above.

Looked, and found nothing — 63

SignalWhat it found
04.hotspot_concentration change is spread across the codebase rather than pooling in a few filesfiles 17,347 · top5 share 0.047
04.debt_markers debt markers are sparsemarkers 193 · per kloc 0.17 · lines read 1,147,625
04.dependency_sprawl direct dependency counts are unremarkable
04.churn_trend rework is not rising against new worklate delete per insert 0.731 · early delete per insert 0.659
04.eol_runtime every pinned runtime is still supportedeol as of 2026-09-24
04.fix_share_trend fixing is not crowding out building
04.compat_layers little code is kept for the old wayshare 0.005 · code files 2,562 · compat files 12
04.dependency_redundancy one library per job, mostly
06.structured_logging a structured logging library is referencedmatches 11
06.correlation_ids a request can be followed through the logstracing False · request id sites 2
06.release_markers releases are markedtags last year 129 · release commits 86 · changelog commits 6
06.migrate_on_start migrations do not run at container start
03.contributor_concentration no single contributor dominates the last 24 monthsyears 12.7 · window last 24 months · authors 272
03.active_contributors more than one contributor active in the trailing yearall time 272 · active 12mo 26
03.knowledge_silos every substantial directory has been touched by more than one personauthors 274 · directories 13
03.drive_by_contributors an open contributor base, where one-commit contributors are normalauthors 272 · one off share 0.566
03.contributor_attrition no contributor dominates enough for their absence to matterauthors 272 · top share less than a quarter · top contributor last committed within the last three months
03.critical_path_ownership more than one person changes the critical pathsauthors 27
03.second_contributor_attrition the second and third contributors are still active
03.bus_factor_trend the team has not narrowed to one person
03.joiners_and_leavers the team is not shrinkingleft 0 · joined 2 · regular last year 16
02.ci_presence CI configuration is present in the working treecount 11
02.release_cadence tags are presenttags 1,089
02.conventional_commits commit subjects generally carry contentsampled 13,429 · low content share 0.012
02.branch_protection_hints process scaffolding is present in the repository
02.ci_runs_tests CI invokes a test runnerconfigs 11 · with tests 4
02.ci_test_gating no test run in CI is written so that it cannot failconfigs 11
02.revert_share change is rarely undoneshare 0.003 · reverts 9 · recent commits 2,579
02.dependency_update_cadence dependencies move with the codelockfiles 2 · commits since 7 · days since lockfile changed 1
02.flaky_test_markers tests are not retried until they passtest retries 0 · suite retries 0
02.lint_in_build a linter or formatter runs in the buildwired 6 · ci configs 11 · product files 2,562
01.burst_import no commit run met both the rate and the net-addition thresholdgap seconds 180 · min add ratio 3.0 · min net added 2,000
01.initial_dump first commit is not a disproportionate share of the codebaseinsertions 286 · share of insertions 0.0001
01.message_uniformity commit subjects vary in wording and lengthlength stdev 16.01 · repeat share 0.057
01.revision_depth most files were revisited after they were first writtenfiles seen 17,370 · write once share 0.307
01.duplicated_blocks little shipping code is repeated verbatim across filesshare 0.0043 · product files 2,550 · distinct blocks 383,801
01.swallowed_errors errors are rarely thrown awayloc 1,151,181 · files 1 · per kloc 0.0
01.build_reproducibility every base image names a versionfloating 0 · from lines 1
01.unfinished_migration no language migration is stalled halfway
01.weights_in_git no model weights are committedfiles 0
05.committed_secrets no credential-shaped strings outside test and fixture pathsnote the working tree only; the history is 05.5 · patterns 7 · files read 3,586
05.security_guardrails at least one standard guard rail is configured
05.dependency_pinning a lockfile is committed, so builds are reproduciblelockfile True
05.license_present a licence file is presentfound True
05.secrets_management_pattern no environment file is committed outside tests and examplesenv files 0
05.outbound_timeouts outbound calls set timeouts, or are fewcalls without timeout 0
05.migration_reversibility migrations can be rolled backshare 0.0 · migrations 142 · irreversible 0
05.unsafe_deserialization no code-executing deserialiser in product codesites 0
05.tls_verification_off no TLS verification is switched off in product codefiles 0 · sites 0 · pinned instead 0
05.privileged_workloads no workload runs privileged or in the host's namespacessites 0
05.credentials_in_deploy_config deployment configuration references secrets, never holds themfiles 0 · sites 0
05.public_env_secret only publishable values carry a public prefixnames 0 · sites 0
05.unsafe_html raw HTML is rare, literal or sanitisedsites 0
05.source_maps_shipped production builds do not publish source mapssites 0
05.signing_material no signing keystore or profile is committedfiles 0
05.license_copyleft_inherited the project is itself AGPL-3.0, so copyleft components carry no obligation it has not already acceptedown license AGPL-3.0 · copyleft components 5
05.license_manifest_conflict manifest and licence file agree on AGPL-3.0license AGPL-3.0
05.license_vendored_unlicensed no vendored third-party code is committedcomponents 0
05.license_grant_unclear the licence is recognisable as AGPL-3.0class network-copyleft · license AGPL-3.0
04.api_versions_coexisting the newer API version is recent; the old one may be on its way outmonths together 1
04.deprecations_lingering few deprecations have outlived two yearsolder than two years 0 · files with deprecations 18
04.dependency_churn few dependencies were added and dropped within 60 daysdependencies seen 264 · added in two years 77 · removed within 60 days 0
04.ci_platforms_dropped no platform was dropped from CI in the last two years

Could not conclude, or did not apply — 13

Not a clean result. Each says why it could not answer here.

SignalWhy
04.schema_churncolumns, once added, stay
06.print_logginga frontend: console output is the browser's, not the server's
06.alert_rulesno alert rules in the repository; they may live in a console
06.deployed_image_floatsno deployment descriptor names an image
06.probes_identicalno Kubernetes probes
06.single_replicano Kubernetes deployments
06.feature_flagsno feature-flag service; flags may live elsewhere
02.long_lived_branchestoo few merges to judge (squash and rebase leave none)
01.notebook_outputsnot a data or machine-learning repository
05.resource_limitsno Kubernetes workload manifests
05.cleartext_trafficnot a mobile app
05.dataset_provenancenot a data or machine-learning repository
04.flags_accumulatingfew or no feature flags in the history
BOREHOLE READING NOT A CERTIFICATION GSAD-MTS4-CZVJ 2026-09-25 · ABE80D3 BOREHOLE.DEV/VERIFY

Anyone can check this report against the authoritative record — click the stamp, or enter GSAD-MTS4-CZVJ at borehole.dev/verify.

The code commits to the 94 checks this run performed, the bands they produced, and the commit they were read at. It does not cover checks written since.

Put the mark in your README

The image is wrapped in a link to the verification page, so a reader can check it rather than take it on trust. If you embed it: link it to the report, remove it if the report is delisted, and do not present it as a certification or an endorsement.

[![Borehole reading, not a certification](https://borehole.dev/badge/signalapp/signal-desktop/abe80d3.svg "Borehole free reading: not for reliance. See the full report.")](https://borehole.dev/verify/GSADMTS4CZVJ?via=badge)

Borehole reading GSAD-MTS4-CZVJ, not a certification

This commit has been surveyed 16 times

A survey is a reading by a particular version of the assessor. Older readings are kept rather than replaced, because a verification mark attests to the survey it was issued for — overwriting one would make every code already in circulation read as tampered.

ReadAssessorFindingsBand
2026-09-25 · shown borehole 0.6.1 18 adequate
15 other readings (show)
2026-10-04 borehole 0.7.13 8 strong
2026-10-03 borehole 0.7.12 8 strong
2026-10-03 borehole 0.7.11 8 strong
2026-10-02 borehole 0.7.10 8 strong
2026-10-01 borehole 0.7.9 8 adequate
2026-09-30 borehole 0.7.8 8 adequate
2026-09-29 borehole 0.7.6 8 adequate
2026-09-29 borehole 0.7.5 8 adequate
2026-09-27 borehole 0.7.4 8 adequate
2026-09-27 borehole 0.7.3 8 adequate
2026-09-27 borehole 0.7.2 8 adequate
2026-09-27 borehole 0.7.1 8 adequate
2026-09-26 borehole 0.7.0 7 adequate
2026-09-26 borehole 0.6.3 9 adequate
2026-09-26 borehole 0.6.2 9 adequate

Where this scan ran

This scan ran on ordinary cloud infrastructure (cloud-run), not in a hardware-isolated confidential VM. Nothing about it is attested by Google.

What an attested survey proves, and what it does not.

What this scan did with the repository — 7 steps

Written by the steps themselves as they ran, not described afterwards. A hand-written account of a data flow drifts the first time somebody changes the flow and not the account.

AtStepDetail
0.0s read repository metadata from the GitHub API size mb: 1171.5authenticated: False
96.3s cloned the repository to a temporary directory depth: full
157.3s read the git history commits: 13601tracked files: 4540
361.2s ran the deterministic checks blame pass: Falseread working tree: False
361.2s recorded where this scan ran attested: Falseenvironment: cloud-run
458.5s kept the facts, never the source, for re-reading under new checks
458.5s deleting the working copy

Total 458.5s ·source content sent off this machine: none · calls to a language model: 0 · the clone was deleted when the survey ended

An automated reading of a repository's code and its history up to one commit, with public advisory records. It may be wrong, it is not legal, financial, investment or security advice, and it does not replace diligence by a qualified person. It is provided for information: nobody may rely on it (Borehole's terms, section 3).

BOREHOLE 0.6.1 DETERMINISTIC LAYER · NO MODEL CALLSREAD ON BOREHOLE'S SERVER · CLONE DELETED TAKEDOWNCONTRIBUTED TO THIS REPOSITORY? YOUR RIGHTS