North Korean cyber threat actors executed the largest recorded cryptocurrency heist valued at approximately $1.5 billion.

A total of $2,472,777,618 was lost across 344 on-chain security incidents in H1 2025.

Wallet compromise was the most costly attack vector, with $1,706,937,700 stolen across 34 on-chain security incidents in H1 2025.

Phishing was the second most costly, with $410,747,038 stolen across 132 on-chain security incidents in H1 2025.

Phishing currently accounts for the highest number of security on-chain security incidents so far in 2025 (30/06/2025) in H1 2025.

Ethereum experienced the highest number of security incidents, with a total of 70 hacks, scams, and exploits in Q2 2025 in Q2 2025.

Ethereum experienced the highest number of security incidents, with a total of 175 hacks, scams, and exploits in H1 2025.

The median loss per on-chain security incident was $103,996 in Q2 2025.

The average loss per on-chain security incident was $4,308,091 in Q2 2025.

Code vulnerability was the second most costly attack vector, with $235,783,844 stolen across 47 on-chain security incidents in Q2 2025.

The average loss per on-chain security incident was $7,129,980 in H1 2025.

Phishing was the most costly attack vector, with $395,063,695 stolen across 52 on-chain security incidents in Q2 2025.

Losses on Ethereum amounted to $65,370,264 due to security incidents in Q2 2025.

Losses on Ethereum amounted to $1,634,891,832 in H1 2025.

A total of $801,315,669 was lost across 144 on-chain security incidents in Q2 2025. This represents an approximate 52.1% decrease in value lost compared to the previous quarter.

The median loss per on-chain security incident was $89,026 in H1 2025.

There were 59 fewer on-chain security incidents in Q2 2025 than the previous quarter.