About 20 encryption attacks occurred in May, resulting in a total loss of $244 million According to PeckShield monitoring, there were approximately 20 encryption attacks in May 2025, resulting in a total loss of $244 million, a decrease of 39.29% from April. The five major hacking incidents are: $220 million was stolen from Cetus Protocol ($157 million has been frozen, equivalent to 71% of the stolen funds being recovered); Cork Protocol ($12 million); Suspected hacking attacks related to North Korea ($5.2 million); Token MBU ($2.2 million) and Maplestory U ($1.2 million).