In a simulated supply chain attack, Ledger, a leading hardware wallet provider, faces a severe breach. Malicious actors compromise the Ledger Connect Kit, injecting code that exposes the private keys of 100,000 users. The attack, orchestrated through a phishing scam targeting a former employee, allows hackers to siphon funds from connected decentralized apps. Despite Ledger's swift response, deploying a fix within hours, the breach highlights vulnerabilities in third-party software dependencies. Users are urged to clear-sign transactions and avoid unverified DApps. This incident underscores the critical need for robust security protocols and vigilance in the crypto ecosystem to protect sensitive data and assets from sophisticated supply chain threats.