Cryptohack Roundup: Sentencing in $97M Laundering Case, $32M Humanity Protocol Hack, Zcash Patch, and More
A roundup of the week's crypto security news includes a sentencing in a $97 million laundering case, a $32 million hack of Humanity Protocol, a Zcash vulnerability patch, and EU actions against crypto platforms linked to Russia.

This week in cryptocurrency security saw a flurry of activity, from courtrooms to blockchain protocols. A key figure in a $97 million money laundering scheme was sentenced, marking a significant step in holding cybercriminals accountable. Meanwhile, Humanity Protocol suffered a devastating $32 million hack, Zcash patched a critical vulnerability, and European authorities targeted crypto platforms with ties to Russia, freezing $3.8 million in illicit funds. Researchers also exposed a hardware weakness in Trezor wallets, adding to the week's security concerns.
The sentencing in the $97 million laundering case underscores the growing legal consequences for cryptocurrency-related financial crimes. The individual, whose role was central to the scheme, received a prison term as part of a broader crackdown on laundering operations that exploit digital currencies. This case highlights the increasing ability of law enforcement to trace and prosecute complex crypto laundering networks, which often involve multiple jurisdictions and sophisticated obfuscation techniques.
Humanity Protocol, a blockchain-based identity platform, suffered a $32 million exploit, raising questions about the security of decentralized identity systems. The attack drained funds from the protocol's smart contracts, though the exact method remains under investigation. This incident adds to a growing list of high-value DeFi hacks in 2026, emphasizing the need for rigorous auditing and real-time monitoring of smart contract vulnerabilities.
Zcash, a privacy-focused cryptocurrency, patched a vulnerability that could have compromised user anonymity. The flaw, details of which were disclosed after the patch was deployed, could have potentially allowed attackers to deanonymize transactions or exploit the network's zero-knowledge proofs. The Zcash team urged all users to update their software promptly to mitigate any risk.
On the regulatory front, the European Union intensified its scrutiny of cryptocurrency platforms suspected of facilitating transactions for Russian entities. Authorities froze $3.8 million in funds linked to these platforms, part of a broader effort to enforce sanctions and prevent crypto from being used to evade financial restrictions. This action aligns with ongoing global efforts to curb illicit finance in the crypto space.
Finally, researchers exposed a chip-level weakness in Trezor hardware wallets, potentially allowing physical attackers to extract private keys. The vulnerability, which involves side-channel attacks on the device's secure element, could be exploited if an attacker gains physical access to the wallet. Trezor has acknowledged the issue and is working on firmware updates to mitigate the risk, though hardware limitations may prevent a complete fix. This discovery serves as a reminder that even cold storage solutions are not immune to advanced physical attacks.