web3radar · monthly intelligence digest
Arbitrum
May 2026
Ethereum · Monitoring since 2021-08-31 · Ranked #2 of 6 monitored chains by activity this month
Executive summary
For Arbitrum in May 2026, 5 security incidents were published, with $864.55K in reported losses.
Security incidents
5
+5 MoM
Total loss reported
$864.55K
+$864.55K MoM
Staking events
0
Slashing-class
0
Notable security incidents
5 published this month
- Fractal Protocol2026-05-24Fractal Protocol · OTHER · $13.70K loss · Root cause: flash_loan_attack
- SEA Token2026-05-17SEA Token · OTHER · $153.00K loss · Root cause: flash_loan_attack
- Aurellion2026-05-12Aurellion · OTHER · $456.00K loss · Root cause: smart_contract_bug
- Renegade2026-05-10Renegade · OTHER · $209.00K loss · Root cause: smart_contract_bug
- Sharwa.Finance2026-05-01Sharwa.Finance · OTHER · $32.85K loss · Root cause: oracle_manipulation
Validator-set health
0 staking events · 0 slashing-class
No staking events recorded on Arbitrum during May 2026. Validator set was clean.
Peer benchmark
Among 6 chains web3radar monitored in May 2026
Arbitrum ranked #2 of 6 monitored chains by combined incident + staking event volume this month. Among the most-active chains this month.