Taiko Network Hit by $1.7M Exploit Tied to GitHub Leak of Raiko SGX Signing Keys

BlockSec monitoring indicates the Taiko network was exploited for losses of more than $1.7 million after Raiko SGX enclave signing keys were exposed on GitHub. With the leaked keys, the attacker was able to register SGX instances under their control and sign attestations, allowing fraudulent state proofs to pass verification. Using forged source signals, the attacker then registered counterfeit bridge messages and invoked retryMessage, prompting the ERC20Vault to release assets on L1.