Ankr incolpa $5 milioni di exploit sull'ex dipendente

• Ankr previously acknowledged that a stolen deployer key that was used to update the protocol’s smart contracts was behind the attack. However, it did not reveal how the deployer key was obtained at the time.

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The Ankr team, which on December 1 suffered a $5 million hack, has announced on its website that a former employee was responsible for the attack on the protocol. The DeFi platform disse that the former team member was able to carry out the supply chain attack by inserting harmful code into a package of upcoming updates to the team’s internal software. The malicious code, once updated, produced a security flaw that gave the attacker access to the platform’s server and stole the team’s deployer key.

Il difetto ha consentito a un utente di coniare 6 quadrilioni di token aBNBc, che il pirata convertiti rapidamente in Binance Coin (BNB) prima di inviarli a Tornado Cash, un servizio di mixaggio di criptovalute. L'attaccante è riuscito a scambiare i token BNB con 5 milioni di USDC.

Ankr said it has notified the appropriate authorities and is working to have the attacker prosecuted. The team is also working to improve security to safeguard future access to its keys. The team said in a statement,

L'exploit è stato possibile in parte perché c'era un singolo punto di errore nella nostra chiave di sviluppo. Ora implementeremo l'autenticazione multi-sig per gli aggiornamenti che richiederanno l'approvazione da parte di tutti i custodi delle chiavi durante intervalli di tempo limitati, rendendo un futuro attacco di questo tipo estremamente difficile se non impossibile. Queste funzionalità miglioreranno la sicurezza per il nuovo contratto ankrBNB e tutti i token Ankr.

4/ Ora stiamo migliorando diverse misure di sicurezza, eccone alcune:

– Requiring Multi-sig authentication & timelocks for all updates
– Revamping internal security measures
– Implementing new monitoring and notification systems
– Refining procedures for working with DeFi protocols

— Ankr Staking (@ankrstaking) 20 dicembre 2022

Furthermore, Ankr has pledged to enhance HR procedures and will mandate that all workers, including those who work remotely, face increased background checks. The team also promised to review access privileges to ensure that only employees who need access to critical information will have clearance to access it. The DeFi protocol also plans to install new notification systems to notify the staff more promptly if a problem occurs.

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