On November 2, 2022, an attacker compromised an administrator's private key for Rubic's bridge, which controlled the RBC/BRBC bridge and staking rewards. The attacker stole approximately 34M RBC tokens and sold them on Uniswap and PancakeSwap, with realized losses estimated at ~$1.2M. The token price collapsed 98% following the mass liquidation.

The multi-chain exchange protocol Rubic tweeted that an administrator’s wallet address, which manages the RBC/BRBC cross-chain bridge and staking rewards, was stolen, and the team suspected that malware stole the private key. The attacker sold about 34 million RBC/BRBC on Uniswap and PancakeSwap, the user's staking funds are safe and the smart contract is not exploited.