UPCX Hack: $70 Million Stolen in Smart Contract Breach

A recent cyberattack has exposed a vulnerability in the UPCX decentralized payment service, resulting in a significant loss of over $70 million in UPC tokens. The attack exploited unauthorized access to one of the project’s smart contracts, allowing an attacker to withdraw funds and transfer them elsewhere. 2025 saw the rise in DeFi activity, but this incident highlights the continued vulnerability of blockchain-based systems.