The decentralized-finance protocol announced that it is working with exchanges to stop trading of its BNB staking rewards token, aBNBc, immediately.

Ankr, a decentralized finance (DeFi) protocol based on BNB Chain, has acknowledged being affected by a multi-million dollar exploit on December 1.

On December 2, on-chain security analyst PeckShield appears to have become aware of the attack for the first time.

Ankr tweeted an hour after the attack to confirm that the aBNB token had been exploited and that they were working with exchanges to stop trading the compromised token right away.

Ankr Reward Bearing Staked BNB (aBNBc), a reward-bearing token for BNB staked on the protocol, was allegedly created by the attacker in the amount of 20 trillion.

The exploiter later used services like Uniswap, Tornado Cash, and various bridges to swap and obfuscate the funds in order to gain about $5 million worth of USD Coin, claims a tweet from on-chain analysis company Lookonchain.