In brief. Twilio is a bug bounty program on HackerOne. Its critical reports have paid an average of $2,064 across 145 reports (HackerOne figures, November 7, 2026). It received 1,710 reports in the 90 days to November 7, 2026, about 17 per in-scope asset.
Twilio
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Found a vulnerability?
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These are HackerOne’s own figures for this program, taken from its public page. Researchers did not report them, and they don't count toward the BugRater grade. Captured 7 Nov 2026.
What it pays, by severity
$143,652 paid to researchers in total, $61,520 of it in the last 90 days. This is HackerOne’s lifetime figure. It shows the program has paid out before. It doesn't tell you what any one report will get.
Intake & responsiveness, last 90 days
Response targets it sets itself
These are targets the program set. They don't show whether it meets them.
Barriers to submitting
Open to submit. HackerOne lists no requirements for submitting a report here.
Over 77 days (272 snapshots): intake up 1,100 reports; response efficiency down 15 points; 90-day payout up $15,370.
See how this program’s report load compares to others
Reviews
0 publishedNo reviews yet.
Who this program credits
267 creditedResearchers HackerOne shows on this program’s public thanks list, best position first. “Recognised” is how many of a hunter’s submissions the program accepted; the ratio is their signal here, not our judgement of them.
| # | Researcher | Reputation | Recognised / submitted |
|---|---|---|---|
| 1 | silentxploit | 811 | 13 / 43 30% |
| 2 | mickeyjoe | 470 | 5 / 15 33% |
| 3 | tushar6378 | 377 | 14 / 26 54% |
| 4 | bornwinnerrr | 298 | 5 / 9 56% |
| 5 | 0xg3r4lt | 200 | 5 / 13 38% |
| 6 | japz | 199 | 6 / 6 100% |
| 7 | vinnyvinoth | 190 | 4 / 4 100% |
| 8 | xi9_amged | 183 | 10 / 43 23% |
| 9 | ctfteddy | 179 | 2 / 11 18% |
| 9 | lak_sh | 179 | 6 / 17 35% |
| 11 | davensec | 175 | 2 / 3 67% |
| 12 | d0xing | 174 | 7 / 8 88% |
| 13 | the-dark-kniiight | 147 | 5 / 31 16% |
| 14 | kaiksi | 128 | 4 / 5 80% |
| 15 | joelovip | 118 | 2 / 2 100% |
| 16 | an1msh | 116 | 1 / 2 50% |
| 16 | cardador | 116 | 1 / 4 25% |
| 18 | muh404med | 115 | 4 / 7 57% |
| 19 | geekysherlock | 113 | 1 / 2 50% |
| 19 | pigpencipher | 113 | 2 / 12 17% |
| 21 | pepelux | 103 | 3 / 5 60% |
| 22 | nishant57 | 88 | 4 / 4 100% |
| 22 | w2w | 88 | 3 / 7 43% |
| 24 | thanhlocpanda | 79 | 1 / 4 25% |
| 24 | winwar | 79 | 0 / 13 0% |
Showing the top 25 of 267 credited on HackerOne.
HackerOne published these facts on the program's page. Researchers did not report them, and they don't count toward the BugRater grade. Last checked 6 Nov 2026.
Communications APIs with AI and data for SMS, Voice, Email | Twilio
Scope
146 assets| Asset | Type | Eligibility | Max severity |
|---|---|---|---|
| *.sip.*.twilio.com | WILDCARD | ✓ bounty | Critical |
| 1console.twilio.com | URL | ✓ bounty | Critical |
| accounts.twilio.com | API | ✓ bounty | Critical |
| Any host/web property verified to be owned by Twilio et al. | OTHER | ✓ bounty | Critical |
| api.authy.com | API | ✓ bounty | Critical |
Show all 146 assets
| Asset | Type | Eligibility | Max severity |
|---|---|---|---|
| api.segment.io | API | ✓ bounty | Critical |
| api.segmentapis.com | API | ✓ bounty | Critical |
| api.sendgrid.com | URL | ✓ bounty | Critical |
| api.stytch.com | API | ✓ bounty | Critical |
| api.twilio.com | API | ✓ bounty | Critical |
| app.segment.com | URL | ✓ bounty | Critical |
| app.sendgrid.com | URL | ✓ bounty | Critical |
| assistants.twilio.com | API | ✓ bounty | Critical |
| Authy/Verify Targets | OTHER | ✓ bounty | Critical |
| blog.twilio.com | URL | ✓ bounty | Critical |
| bulkexports.twilio.com | API | ✓ bounty | Critical |
| client.dev | URL | ✓ bounty | Critical |
| com.authy | APPLE STORE APP ID | ✓ bounty | Critical |
| com.authy.authy | GOOGLE PLAY APP ID | ✓ bounty | Critical |
| connectedapps.dev | URL | ✓ bounty | Critical |
| console.twilio.com | URL | ✓ bounty | Critical |
| content.twilio.com | API | ✓ bounty | Critical |
| conversations.twilio.com | API | ✓ bounty | Critical |
| events.twilio.com | API | ✓ bounty | Critical |
| flex-api.twilio.com | API | ✓ bounty | Critical |
| frontline-api.twilio.com | API | ✓ bounty | Critical |
| github.com/segmentio | SOURCE CODE | ✓ bounty | Critical |
| github.com/sendgrid | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/is-agent | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/samlshield | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-android | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-browser | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-dotnet | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-go | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-ios | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-ios-dfp | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-java | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-management-go | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-management-python | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-mobile | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-node | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-php | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-python | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-ruby | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/stytch-rust | SOURCE CODE | ✓ bounty | Critical |
| github.com/stytchauth/terraform-provider-stytch | SOURCE CODE | ✓ bounty | Critical |
| github.com/twilio | SOURCE CODE | ✓ bounty | Critical |
| github.com/twilio-labs | SOURCE CODE | ✓ bounty | Critical |
| help.twilio.com | URL | ✓ bounty | Critical |
| http://api.twilio.com | URL | ✓ bounty | Critical |
| http://help.twilio.com | URL | ✓ bounty | Critical |
| http://tsock.us1.twilio.com | URL | ✓ bounty | Critical |
| http://twilio.com/blog | URL | ✓ bounty | Critical |
| https://github.com/stytchauth | SOURCE CODE | ✓ bounty | Critical |
| https://segment.com/docs/connections/sources/ | URL | ✓ bounty | Critical |
| https://stytch.com/blog | URL | ✓ bounty | Critical |
| https://stytch.com/dashboard | URL | ✓ bounty | Critical |
| https://www.authy.com/download/ | APPLE STORE APP ID | ✓ bounty | Critical |
| https://www.twilio.com/docs/authy/api | API | ✓ bounty | Critical |
| https://www.twilio.com/docs/libraries | OTHER | ✓ bounty | Critical |
| https://www.twilio.com/docs/verify/api | API | ✓ bounty | Critical |
| https://www.twilio.com/en-us/blog/get-started-webrtc | OTHER | ✓ bounty | Critical |
| https://www.twilio.com/login?g=%2fconsole%3f&t=2b1c98334b25c1a785ef15b6556396290e3c704a9b57fc40687cbccd79c46a8c | URL | ✓ bounty | Critical |
| iam.twilio.com | API | ✓ bounty | Critical |
| insights.twilio.com | API | ✓ bounty | Critical |
| intelligence.twilio.com | API | ✓ bounty | Critical |
| isagent.dev | URL | ✓ bounty | Critical |
| knowledge.twilio.com | API | ✓ bounty | Critical |
| lookups.twilio.com | API | ✓ bounty | Critical |
| management.stytch.com | API | ✓ bounty | Critical |
| marketplace.twilio.com | API | ✓ bounty | Critical |
| mc.sendgrid.com | URL | ✓ bounty | Critical |
| memory.twilio.com | API | ✓ bounty | Critical |
| messaging.twilio.com | API | ✓ bounty | Critical |
| monitor.twilio.com | API | ✓ bounty | Critical |
| notify.twilio.com | API | ✓ bounty | Critical |
| numbers.twilio.com | API | ✓ bounty | Critical |
| oauth.twilio.com | API | ✓ bounty | Critical |
| Other Targets | OTHER | ✓ bounty | Critical |
| platform.segmentapis.com | API | ✓ bounty | Critical |
| preview.twilio.com | API | ✓ bounty | Critical |
| pricing.twilio.com | API | ✓ bounty | Critical |
| profile.segment.com | API | ✓ bounty | Critical |
| proxy.twilio.com | API | ✓ bounty | Critical |
| routes.twilio.com | API | ✓ bounty | Critical |
| Segment Targets | OTHER | ✓ bounty | Critical |
| SendGrid Targets | OTHER | ✓ bounty | Critical |
| sendgrid.com | URL | ✓ bounty | Critical |
| serverless.twilio.com | API | ✓ bounty | Critical |
| signup.sendgrid.com | URL | ✓ bounty | Critical |
| smtp.sendgrid.net | OTHER | ✓ bounty | Critical |
| static*.twilio.com | WILDCARD | ✓ bounty | Critical |
| studio.twilio.com | API | ✓ bounty | Critical |
| sync.twilio.com | API | ✓ bounty | Critical |
| taskrouter.twilio.com | API | ✓ bounty | Critical |
| telemetry.stytch.com | API | ✓ bounty | Critical |
| test.stytch.com | API | ✓ bounty | Critical |
| trunking.twilio.com | API | ✓ bounty | Critical |
| tsock.us1.twilio.com | OTHER | ✓ bounty | Critical |
| Twilio APIs | OTHER | ✓ bounty | Critical |
| Twilio Primary Targets | OTHER | ✓ bounty | Critical |
| Twilio Secondary Targets | OTHER | ✓ bounty | Critical |
| twilio.com | URL | ✓ bounty | Critical |
| All Kurento domains | OTHER | out | None |
| All Twilio acquisitions unless explicitly listed as in-scope | OTHER | out | None |
| All Twilio acquisitions until explicitly noted under the in-scope targets | OTHER | out | None |
| apjevents.twilio.com | URL | out | None |
| cdpweek.com | URL | out | None |
| chatagotchi.app | URL | out | None |
| click.sendgrid.com | URL | out | None |
| community.segment.com | URL | out | None |
| Electric Imp and its assets | OTHER | out | None |
| github.com/stytchauth/sqx | SOURCE CODE | out | None |
| http://apjevents.twilio.com | URL | out | None |
| http://events.cdpweek.com | URL | out | None |
| http://segment.com/contact | URL | out | None |
| http://segment.com/jobs | URL | out | None |
| http://twilio.com/en-us/company/jobs | URL | out | None |
| http://twilio.com/labs | URL | out | None |
| jobs.twilio.com | URL | out | None |
| js.stytch.com | URL | out | None |
| lab.authy.com | URL | out | None |
| partners.segment.com | URL | out | None |
| portal.partnerships.twilio.com | URL | out | None |
| signal.twilio.com | URL | out | None |
| status.segment.com | URL | out | None |
| status.sendgrid.com | URL | out | None |
| status.stytch.com | URL | out | None |
| status.twilio.com | URL | out | None |
| store.twilio.com | URL | out | None |
| support.sendgrid.com | URL | out | None |
| support.twilio.com | URL | out | None |
| surveys.twilio.com | URL | out | None |
| talks.twilio.com | URL | out | None |
| Third-party services | OTHER | out | None |
| transform.twilio.com | URL | out | None |
| twil.io | URL | out | None |
| Twilio Quest | OTHER | out | None |
| Twilio Wireless | OTHER | out | None |
| twiliotraining.com | URL | out | None |
| TwimlBins | OTHER | out | None |
| web.stytch.com | URL | out | None |
| webinars.segment.com | URL | out | None |
| webinars.twilio.com | URL | out | None |
| Ytica and its assets | OTHER | out | None |
| zipwhip.com | URL | out | None |
HackerOne lists 156 scope entries. Its public listing groups many assets under one label, so we show identical entries once.