Hacker transfers $70M out of payment platform UPCX

Update April 1, 1:42 pm UTC: This article has been updated to add comments from Cyvers co-founder and chief technology officer Meir Dolev.

An unauthorized party withdrew about $70 million in digital assets from open-source payment platform UPCX, according to a security alert issued on April 1.

The blockchain security firm Cyvers flagged suspicious activity involving 18.4 million UPC tokens, estimating the value of the compromised funds at $70 million.

Cyvers said someone accessed a UPCX address and upgraded its ProxyAdmin contract. The attacker then…