Circle incident
CCTP attestation delay for all testnet blockchain
Circle experienced a major incident on March 17, 2026 affecting Attestation Service, lasting 2h 1m. The incident has been resolved; the full update timeline is below.
Affected components
Attestation Service
Update timeline
- identified Mar 17, 2026, 03:35 AM UTC
CCTP attestation delay for all testnet blockchain. We are working to resolve the delay.
- resolved Mar 17, 2026, 05:37 AM UTC
CCTP attestation delay issue has now been resolved