BlockBeats News, May 21st, Tor-based peer-to-peer multi-signature DEX RetoSwap announced on social media that its upstream open-source project Haveno's trading protocol was hacked. Subsequently, RetoSwap banned the attacker's onion address, paused trading through a client version restriction, and the team itself was not attacked. The impact of this incident was mainly on large cryptocurrency transactions, and fiat transactions were not affected. Currently, the team is assessing solutions to assist affected users in recovering their funds.

Moreover, according to PeckShield monitoring, RetoSwap users lost approximately 7,000 XMR (about $2.7 million) in this attack.