The Secret Network bridge suffered a significant exploit resulting in a loss of $4.7 million. The attacker utilized an 'infinite mint' bug to generate tokens unlawfully, according to reports.
CoinTelegraph noted that the breach went undetected for approximately one week. During this time, the hacker moved the stolen assets into the Ethereum network before transferring them to various exchanges.
This incident highlights ongoing security challenges in cross-chain bridges, a concern for Japanese investors increasingly exposed to decentralized finance and crypto assets linked to multiple blockchains.