Crypto and web3 security incidents resulted in more than $ 801.3 million losses out of 144 incidents in the second quarter of 2025. Certik said that this reflects a 52.1% drop in the lost value compared to the previous quarter.
The quarter also saw 59 less incidents during this period.
Ethereum struck again hard
Phishing was the most damaging attack vector because he saw that $ 395 million was stolen on 52 incidents. Code vulnerabilities followed suit and recorded $ 2,45.8 million in losses out of 47 incidents.
In his latest report, Certik said This Ethereum has experienced the greatest number of incidents. The network recorded 70 hacks, scams and exploits, resulting in $ 65.4 million in losses for the quarter.
In addition, funds worth $ 181 million has been recovered, which led to the losses adjusted for the second quarter to $ 620.4 million. The average loss per incident was $ 4.3 million, while the median was around $ 104,000.
In a zoom out, the blockchain security company also reported total losses of $ 2.47 billion on 344 incidents for the first half of 2025. Portfolio compromises were the most expensive during this period, because these violations represented $ 1.71 billion in 34 incidents. The next step has been phishing, with $ 410.7 million stolen from 132 incidents, which has made it the most common type of attack so far this year.
So far this year, Ethereum has recorded 175 H1 incidents, resulting in $ 1.63 billion in losses. A total of $ 187.3 million was recovered in the first half, pushing the total losses adjusted to $ 2.29 billion. At the same time, the average loss per incident for H1 was $ 7.13 million, with a median loss of $ 89,026.
Two main hacks are biased trends
Certik noted that, although the head figures suggest the worsening of cryptography security, two incidents alone represented around $ 1.78 billion in 2025 losses – bybit and the violation of the Cetus protocol.
Pirates exploited Bybit’s cold portfolio infrastructure in February 2025 by modifying the transaction logic and masking interfaces, which enabled them to steal more than $ 1.5 billion in ether. The famous hacking entity sponsored by the state of North Korea, the Lazare group, was responsible for it.
In addition, Cetus based on the other hand, on the other hand, suffer A feat in an overflow check in the project liquidity calculation function, which led to $ 225 million in losses in May.
Without these two incidents, total losses would be $ 690 million, which essentially indicates that the wider safety trend is not as serious as raw figures involve.
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