Former Binance CEO Changpeng Zhao (CZ) has criticized Secure Pockets’s autopsy replace on the Bybit hack, calling it “not that nice” and elevating issues about how attackers tricked a number of signers.
His feedback comply with an audit report stating that the breach resulted from a compromise of Secure’s infrastructure fairly than the change’s programs.
Secure’s Response
Forensic investigations discovered that compromised Secure Pockets credentials led to the practically $1.5 billion Bybit exploit. In an announcement on X on Wednesday, the crypto pockets supplier confirmed the findings, stating that the hack stemmed from a “compromised Secure Pockets developer machine.”
The corporate highlighted that the studies didn’t determine vulnerabilities in its good contracts or front-end supply code. It additionally introduced that it had totally rebuilt and reconfigured its infrastructure and altered all credentials, guaranteeing the assault vector was “totally eradicated.”
Nonetheless, CZ criticized the assertion, saying:
“This replace from Secure isn’t that nice. It makes use of obscure language to brush over the problems. I’ve extra questions than solutions after studying it.”
He questioned what “compromising a Secure {Pockets} developer machine” meant and the way the assault occurred, asking whether or not social engineering or a virus was concerned. He additionally inquired how the developer machine had entry to an account operated by Bybit and whether or not the code was deployed on to manufacturing.
Additional issues have been raised about how the attackers bypassed Ledger verification, whether or not blind signing was concerned, or if signers did not confirm correctly.
The Report and Updates
On February 26, Bybit launched a forensic audit carried out by Sygnia and Verichains in regards to the assault. The audit revealed that Secure developer’s credentials had been compromised, giving hackers entry to the pockets’s infrastructure, which led to signers being deceived into approving a malicious transaction.
In keeping with the report, the exploit was carried out utilizing “malicious JavaScript code” that had been injected into Secure’s Amazon Net Providers system two days earlier. The script activated solely when transactions got here from particular contract addresses, together with Bybit’s multi-sig contract and one other handle suspected to belong to the felony.
Simply two minutes after the hack, the attackers eliminated the malicious code from Secure’s system and disappeared. Forensic consultants and the corporate have additionally confirmed that Bybit’s infrastructure was not compromised.
Because the incident, Bybit has borrowed 40,000 ETH from Bitget to satisfy withdrawal calls for, which have since been repaid. The agency has additionally restored its reserves by loans, asset purchases, and whale deposits, securing 446,870 ETH valued at $1.23 billion. CEO Ben Zhou confirmed that the change now has 100% backing for consumer property.
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