In brief. Arc is a bug bounty program run by Arc BBP on HackerOne. It received 4,394 reports in the 90 days to November 7, 2026, about 152 per in-scope asset.
Arc
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Found a vulnerability?
If you'd rather not deal with the vendor yourself, a BugRater analyst will submit it to them for you, with your explicit permission, and tell you what they said.
Ask BugRater to submit itReports are private. The report body is encrypted at rest. BugRater holds the key, so the analyst handling your report can read it, and we log every time someone does.
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
$11,450 paid to researchers in total, $11,450 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 51 days (53 snapshots): intake up 4,394 reports; response efficiency down 12 points; 90-day payout up $11,450.
See how this program’s report load compares to others
Reviews
0 publishedNo reviews yet.
Who this program credits
40 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 | bugsv2 | 92 | 2 / 5 40% |
| 1 | cantina-security | 17 | 1 / 2 50% |
| 1 | cyberkurt | 17 | 1 / 1 100% |
| 1 | spell1 | 17 | 1 / 3 33% |
| 2 | 0xa1mn | 90 | 2 / 9 22% |
| 3 | nagli | 89 | 2 / 2 100% |
| 3 | omer | 89 | 2 / 2 100% |
| 4 | ethicaluserv | 10 | 0 / 1 0% |
| 5 | crazy_diam0nd | 57 | 1 / 1 100% |
| 5 | emano888 | 57 | 1 / 1 100% |
| 5 | fxar | 57 | 1 / 1 100% |
| 5 | pr3da70r | 57 | 1 / 1 100% |
| 5 | s3c | 57 | 1 / 1 100% |
| 5 | todayisnew | 57 | 2 / 4 50% |
| 5 | binbtjp | 2 | 1 / 1 100% |
| 5 | ferox0101 | 2 | 1 / 2 50% |
| 5 | kirasec | 2 | 1 / 5 20% |
| 5 | lioper | 2 | 1 / 2 50% |
| 5 | yoyodavelion | 2 | 1 / 1 100% |
| 5 | zuma045 | 2 | 1 / 3 33% |
| 11 | amalyoman | 44 | 2 / 3 67% |
| 11 | morsec0x | 44 | 2 / 2 100% |
| 11 | youstin | 44 | 2 / 3 67% |
| 14 | 0xd0m7 | 32 | 1 / 2 50% |
| 14 | muskanshaikh | 32 | 1 / 2 50% |
Showing the top 25 of 40 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.
Arc is an open internet platform for the world’s financial markets, real-time value movement, and agentic economic activity.
Scope
44 assets| Asset | Type | Eligibility | Max severity |
|---|---|---|---|
| *.arc.io | WILDCARD | ✓ bounty | Critical |
| All Multichain USDC and EUROC Smart Contracts | OTHER | ✓ bounty | Critical |
| api.circle.com | URL | ✓ bounty | Critical |
| app.circle.com | URL | ✓ bounty | Critical |
| arc.io | URL | ✓ bounty | High |
Show all 44 assets
| Asset | Type | Eligibility | Max severity |
|---|---|---|---|
| checkout.circle.com | URL | ✓ bounty | Critical |
| com.cybavo.auth | GOOGLE PLAY APP ID | ✓ bounty | Critical |
| Cross Chain Transfer Protocol (CCTP) | OTHER | ✓ bounty | Critical |
| http://github.com/circlefin/noble-cctp | SMART CONTRACT | ✓ bounty | Critical |
| https://algoexplorer.io/asset/31566704 | SMART CONTRACT | ✓ bounty | Critical |
| https://app.dragonglass.me/hedera/tokens/0.0.456858 | SMART CONTRACT | ✓ bounty | Critical |
| https://etherscan.io/token/0x1aBaEA1f7C830bD89Acc67eC4af516284b1bC33c | SMART CONTRACT | ✓ bounty | Critical |
| https://etherscan.io/token/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48 | SMART CONTRACT | ✓ bounty | Critical |
| https://flowscan.org/contract/A.b19436aae4d94622.FiatToken | SMART CONTRACT | ✓ bounty | Critical |
| https://github.com/circlefin/arc-node | SOURCE CODE | ✓ bounty | Critical |
| https://github.com/circlefin/arc-remote-signer | SOURCE CODE | ✓ bounty | Critical |
| https://github.com/circlefin/evm-cctp-contracts | SMART CONTRACT | ✓ bounty | Critical |
| https://github.com/circlefin/evm-gateway-contracts | SMART CONTRACT | ✓ bounty | Critical |
| https://github.com/circlefin/malachite | SOURCE CODE | ✓ bounty | Critical |
| https://github.com/circlefin/stablecoin-starknet | SOURCE CODE | ✓ bounty | Critical |
| https://github.com/circlefin/stellar-cctp | URL | ✓ bounty | Critical |
| https://polygonscan.com/token/0x2791bca1f2de4661ed88a30c99a7a9449aa84174 | SMART CONTRACT | ✓ bounty | Critical |
| https://snowtrace.io/token/0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E | SMART CONTRACT | ✓ bounty | Critical |
| https://solscan.io/token/EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v | SMART CONTRACT | ✓ bounty | Critical |
| https://stellar.expert/explorer/public/asset/USDC-GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN | SMART CONTRACT | ✓ bounty | Critical |
| https://tronscan.org/#/token20/TEkxiTehnzSmSe2XqrBj4w32RUN966rdz8 | SMART CONTRACT | ✓ bounty | Critical |
| rpc.drpc.testnet.arc.network | URL | ✓ bounty | Critical |
| rpc.testnet.arc.network | URL | ✓ bounty | Critical |
| community.arc.io | URL | out | None |
| developers.circle.com | URL | out | None |
| engineering.circle.com | URL | out | None |
| explorer.arc.io | URL | out | None |
| help.arc.io | URL | out | None |
| media.circle.com | URL | out | None |
| my-sandbox.circle.com | URL | out | None |
| status.circle.com | URL | out | None |
| stg-usdc.circle.com | URL | out | None |
| support.circle.com | URL | out | None |
| support.invest.circle.com | URL | out | None |
| support.poloniexus.circle.com | URL | out | None |
| support.usdc.circle.com | URL | out | None |
| usdc.circle.com | URL | out | None |
| www.circle.com | URL | out | None |
| 1422565459 | APPLE STORE APP ID | ✓ bounty | Critical |