A critical warning has been issued by Ledger’s Chief Technology Officer (CTO) concerning a potential supply chain attack impacting the crypto industry. The CTO urged all users, particularly those with hardware wallets, to take immediate action. The attack might have compromised software components or integrations within crypto infrastructure, potentially enabling malicious actors to manipulate on-chain transactions even when using secure wallet hardware. Users are advised to manually verify every transaction before signing, avoid unnecessary on-chain activity like DeFi trading or smart contracts interactions, and wait for official patches from wallet providers and software platforms. Although Ledger hasn’t confirmed direct product impact, the CTO’s warning implies a wider vulnerability across the entire crypto ecosystem. The attack highlights the inherent security risks associated with complex crypto supply chains where open-source code, third-party libraries, and external contributors can create entry points for malicious actors.