Cysic has shut down its cross-chain bridge following a security breach that allowed an attacker to mint 10 million CYS tokens. The October 17 incident affected the bridge’s minting system on BNB Smart Chain, prompting emergency restrictions and an external investigation. According to the Cysic Foundation’s incident report, the attacker exploited weaknesses in bridge processing after gaining unauthorized database access. The breach occurred at 12:31:38 UTC, when a fraudulent message triggered the creation of 10 million CYS tokens.