
DeFi Under Siege: Inside the $70 Million UPCX Hack and April’s $100 Million+ Security Meltdown
Summary
April 2025 proved to be a turbulent month for decentralized finance (DeFi), as attackers exploited both on-chain vulnerabilities and off-chain security lapses to siphon off over $100 million in user funds. At the forefront was the $70 million UPCX hack, where a compromised private key enabled a malicious smart-contract