April was the worst month on record for crypto exploit losses, with confirmed damages reaching roughly $651 million across more incidents than any prior month, according to DefiLlama and CertiK Alert data.
Why it matters
CertiK Alert's tally puts total April losses near $651 million, including about $3.5 million attributed to phishing. The figure is the largest since March 2022, when losses hit roughly $715 million — and the comparison only holds after stripping out the February 2025 Bybit incident, a single-event category outlier. Read across the full quarter, protocol-level exploits are no longer dominated by one mega-event; the distribution of losses is broadening.
Market impact
The incident-count record is the more important signal. Dollar totals swing on a single compromise, but the count shows attackers are running more, smaller operations rather than fewer headline-grabbers. For protocols, the implication is that the threat surface has expanded across the long tail of DeFi rather than concentrating in the biggest venues.
Frequently asked questions
-
How much was lost to crypto exploits in April?
CertiK Alert reported confirmed losses of about $651 million in April, including roughly $3.5 million attributed to phishing, according to DefiLlama-tracked data.
-
Is April the worst month on record for crypto hacks?
Yes — April set the record for number of hacking incidents. By dollar value it is the worst since March 2022 (~$715M), once the February 2025 Bybit incident is excluded from the comparison.
-
Why does the incident count matter more than the dollar figure?
A single mega-hack can swing monthly dollar totals, but a record count shows attackers are running many smaller operations. The threat surface is broadening across the DeFi long tail rather than concentrating in the largest venues.
-
What share of April's losses came from phishing?
Phishing accounted for roughly $3.5 million of the $651 million total — a small slice, with the bulk of damages coming from on-chain protocol exploits.
-
What was the previous high before April's record?
March 2022 held the prior dollar-loss benchmark at about $715 million, until the February 2025 Bybit incident reset the scale and reshaped how analysts compare monthly tallies.
TheBlock
CoinTelegraph
Crypto News
CoinDesk