What Happened on Dec. 2nd｜Ankr Hacked for $5M, Helio Protocol Affected

DeFi

• PeckShieldAlert: Ankr was exploited, and trillions of $aBNBc was minted.
• PeckShield: Ankr's $aBNBc token contract has an unlimited mint bug.
• Ankr: all underlying assets on Ankr Staking are safe, and all infrastructure services are unaffected.
• One address gains over 15 million $BUSD using 10 $BNB via Ankr's bug.
• The arbitrageur of Ankr's bug transferred over 15.5 million $BUSD to Binance.
• Ankr: please do not trade, $aBNBc will be reissued.
• Ankr plans to reissue $ankrBNB to $aBNBc holders before the exploit, and purchase $5M worth of $BNB to compensate LPs.
• Ankr Exploiter has started to transfer stolen funds on Ethereum into Tornado Cash.
• Helio Protocol suspends all functions, says users' assets are safe.
• Wombat paused $BNB, $aBNBc and $HAY pool.
• MakerDAO will increase the $DAI Savings Rate to 1%.

CeFi

• Binance is engaged with relevant parties to investigate the $aBNBc attack.
• CZ: Ankr attack may have been caused by developer private key being hacked, hacker's $3M are frozen.
• FTX Japan plans to resume withdrawals as customer assets are not part of the bankruptcy proceedings.
• Binance has completed wallet maintenance for the BNB Smart Chain (BEP20) network.
• Binance CSO: Binance's centralized exchange may not be around in 10 years.

Infrastructure

• Ethereum Layer2 scaling solution TAIKO becomes fully open source.
• Discord allows U.S. creators to earn directly from their Discord channels.
• Sui Network's Testnet Wave 1 was sunsetted.

Metaverse & NFTs

• Magic Eden launches a royalty protection tool called Open Creator Protocol.
• Coinbase Wallet: Apple blocks its iOS wallet from offering NFT sending.
• Immutable X launches Offers feature.

Policy & Regulation

• HKMA Chief: Hong Kong is working on an investor protection ordinance.

Fundings

• Binance Labs invests up to $4.5 million in Ambit Finance.

In-Depth Reading

• Buidl on LayerZero – the Emergent Cross-Chain DeFi Applications