Circle Internet Contract Services, LLC bug bounty programs
circle.com Updated
Circle Internet Contract Services, LLC runs two public programs: a HackerOne bug bounty paying up to $200,000 and a HackerOne bug bounty paying up to $5,000.
- Top reward
- $200,000
- HackerOne
- Programs
- 2
- 2 pay cash
- Targets in scope
- 28
- 4 types, deduplicated
- Last change
- None yet
- Tracked since Nov 2026
Where to report
2 programs, side by side. Report where the affected target is in scope; when two programs cover it, pick the one that pays more.
Start here
Arc
HackerOne · Pays the most of the 2 programs: up to $200,000.
| Program | Critical | High | Medium | Low | Top reward | Safe harbor | KYC | First response | Status |
|---|---|---|---|---|---|---|---|---|---|
Arc
HackerOne · Bug bounty |
$200k (highest) | $20k (highest) | $10k (highest) | $5,000 (highest) | $200,000 | Full | Required | 10 hours average | Open |
|
Circle
HackerOne · Bug bounty |
$5,000 | $3,000 | $800 | $400 | $5,000 | Full | Required | 9 hours average | Open |
-
- Critical
- $200k (highest)
- High
- $20k (highest)
- Medium
- $10k (highest)
- Low
- $5,000 (highest)
- Safe harbor
- Full
- KYC
- Required
- First response
- 10 hours average
-
- Critical
- $5,000
- High
- $3,000
- Medium
- $800
- Low
- $400
- Safe harbor
- Full
- KYC
- Required
- First response
- 9 hours average
Amounts are the top reward per severity in the currency each program pays. Green marks the highest per severity. First response is the platform's measured average when it publishes one, else what the policy promises.
What is in scope
28 targets across all 2 programs, each listed once with the programs that cover it. 3 excluded.
No target matches. Try part of a host name, such as the company name.
Out of scope 3
Don't test these. A program can exclude a host another program covers; the program you report to decides.
-
community.arc.io
Arc
-
explorer.arc.io
Arc
-
help.arc.io
Arc
Recent changes
Reward and scope changes across every Circle Internet Contract Services, LLC program, newest first.
No changes recorded yet. New targets and reward moves show up here and in the RSS feed.
About this page
This page gathers every public program listed under circle.com: platform programs, self-hosted policies and security.txt contacts. Each program's own policy decides what is in scope and what it pays; check it before you test.
Something wrong or missing? Report a correction.