Crypto losses hit $2.5B in first half of 2025, but hacks fall in Q2: CertiK

Phishing attacks account for the highest number of security incidents so far this year at 132, but wallet hacks stole the most at $1.7 billion.

Losses to crypto hacks, exploits and scams spiked to $2.47 billion in the first half of 2025, but the second quarter saw a decline in the total number of hacks, says blockchain security firm CertiK.

Over $800 million was lost across 144 incidents in Q2, a 52% decrease in value lost compared to the previous quarter with 59 fewer hacking incidents, CertiK said in a report on Tuesday.

In total, the first half of 2025 has seen more than $2.47 billion in losses due to hacks, scams and exploits, representing a nearly 3% increase compared to the $2.4 billion stolen in 2024.

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