$2.23M left Arcus through a self-transfer.
A new account inflated its balance, then withdrew against it.
Self-transfers in subaccounts are rarely harmless:
- from == to
- same owner, different subaccount IDs
- partial amounts and rounding
- transfer then withdraw in one flow
One invariant to always enforce: total balances before == total after.
$2.23M left Arcus through a self-transfer.
A new account inflated its balance, then withdrew against it.
Self-transfers in subaccounts are rarely harmless:
- from == to
- same owner, different subaccount IDs
- partial amounts and rounding
- transfer then withdraw in one flow
One invariant to always enforce: total balances before == total after.
On Nov 9, Arcus identified and fixed a bug which permitted an unauthorized withdrawal.
No user funds were affected and Arcus has covered the shortfall from its company treasury. Trading and withdrawals are operating normally.
Full incident report:
https://t.co/Rtv0XqVBhq
Officially surpassed 1,600 vulnerabilities found.
All with a team of 15 vetted senior researchers.
Grateful to every project that trusted us with their code ๐ซก
Officially surpassed 1,600 vulnerabilities found.
All with a team of 15 vetted senior researchers.
Grateful to every project that trusted us with their code ๐ซก
Launchpads will be a big play.
It's not copy-paste anymore. Everyone's chasing the 1% improvement, and that's where the bugs live.
We've secured 7 of them, processing $17B+ in volume, and disclosed live bugs in 2 others.
We know how to take care of yours ๐ซก
Launchpads will be a big play.
It's not copy-paste anymore. Everyone's chasing the 1% improvement, and that's where the bugs live.
We've secured 7 of them, processing $17B+ in volume, and disclosed live bugs in 2 others.
We know how to take care of yours ๐ซก
We started 2026 with a goal: 100 high-quality audits.
53 done. 2 months left, 47 to go.
It was ambitious. Still a big year for a team our size.
We'll push for it anyway, no matter how impossible it looks.
Every audit gets everything we have. ๐ซก
We started 2026 with a goal: 100 high-quality audits.
53 done. 2 months left, 47 to go.
It was ambitious. Still a big year for a team our size.
We'll push for it anyway, no matter how impossible it looks.
Every audit gets everything we have. ๐ซก
One underrated trait in a security firm: starting an engagement in under 12 hours.
We can. Without cutting corners on quality.
Your deadline is part of the job. We plan around it, properly. ๐ซก
One underrated trait in a security firm: starting an engagement in under 12 hours.
We can. Without cutting corners on quality.
Your deadline is part of the job. We plan around it, properly. ๐ซก
October wrap-up:
- 12 audits, our best month yet.
- 54 findings: 10 High, 44 Medium.
- 90% of clients came back or were referred.
Every project had already been through at least one AI audit before us.
Smart contract security isn't solved. Not even close. ๐ซก
October wrap-up:
- 12 audits, our best month yet.
- 54 findings: 10 High, 44 Medium.
- 90% of clients came back or were referred.
Every project had already been through at least one AI audit before us.
Smart contract security isn't solved. Not even close. ๐ซก
SBSecurity ๐ค @MontraXYZ
Audit kicked off.
Montra is the place to launch and grow tokens on @Enter_Elysium.
Our senior team is on it.
Looking forward to yet another strong audit with the team behind it. ๐ซก
SBSecurity ๐ค @MontraXYZ
Audit kicked off.
Montra is the place to launch and grow tokens on @Enter_Elysium.
Our senior team is on it.
Looking forward to yet another strong audit with the team behind it. ๐ซก