From @officercia Twitter:

"$zklend Hack rootcause: The attacker manipulated the "lending_accumulator" to be very large at 4.069297906051644020, then took advantage of the rounding error during ztoken mint() and withdraw() to repeatedly deposit 4.069297906051644021 wstETH getting 2 wei then withdraw 4.069297906051644020*1.5 -1 = 6.103946859077466029 wstETH to expend just 1 wei.

Information provided by @ethsecurity.eth 🫡"

https://x.com/officer_cia/status/1889728144199786548

https://blog.solidityscan.com/zklend-hack-analysis-e494cb794f71?gi=383cd73e9016

This hack demonstrates the importance of thorough testing and auditing in smart contract development. Security vulnerabilities can be exploited through clever manipulation of code, highlighting the need for constant vigilance in the DeFi space. Stay safe and keep your code secure, everyone.