Triple-A Hack

REPORTED LOSS $11.8M
High Access Control arbitrum ethereum tron

What happened

On July 25, 2026, Singapore-based licensed stablecoin payment gateway Triple-A suffered a hot wallet compromise across multiple blockchains, resulting in the unauthorized extraction of approximately $9.7 million to $11.8 million in company-owned treasury assets.

The incident occurred when an unauthorized party obtained compromise access to Triple-A's multi-chain hot wallet infrastructure across TRON, Ethereum, Polygon, and Arbitrum. The attacker drained the company's operational treasury accounts, swapped the stolen digital assets, and bridged them to Ethereum Mainnet, consolidating 5,227 ETH into a single holding wallet. Client funds were entirely unaffected because Triple-A does not provide digital asset custody for its users, keeping client balances strictly segregated in trust accounts with safeguarding financial institutions.

Triple-A temporarily placed certain services into maintenance mode for approximately three hours to secure the affected infrastructure before fully restoring normal payment processing, transaction settlements, and global operations.

Case & protocol details

Classification Other / Key Compromise
Protocol Type Exploit/Access control
Implementation language Solidity
Official Website www.triple-a.io/
Protocol Twitter/X @TripleAHQ

Evidence & learning

Sources and on-chain records

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