September was the costliest month of 2026 for crypto hacks and exploits, with two blockchain security firms putting total losses above $766 million. PeckShield said 55 major incidents led to $766.5 million in stolen funds, while CertiK counted 97 incidents and estimated losses at $768.4 million. The biggest cases were the $388 million Bitget breach and the $320 million Liquid Network hack, although reports said more than $270 million from the Liquid Network incident was later returned. Other attacks during the month hit Safe Wallet, DCENT and Duelbits, with losses of $7.8 million, $6 million and $5.9 million. CertiK also said its security dashboard has logged 656 incidents so far in 2026, with cumulative losses reaching $2.68 billion. The firm said September showed how quickly the threat environment can change.
September was the worst month of 2026 for crypto hacks and exploits, with two blockchain security firms estimating losses of more than $766 million.
PeckShield said 55 major incidents in the month resulted in $766.5 million in stolen funds. CertiK counted 97 incidents and put total losses at $768.4 million. Both firms said the figure was sharply higher than in August.
Bitget and Liquid Network drove most of the losses
The largest incidents in September were the $388 million Bitget breach and the $320 million hack of Liquid Network.
Reports said more than $270 million tied to the Liquid Network incident was later returned. The two cases rank among the biggest crypto thefts of the year.
Other projects hit during the month
Other hacks in September affected Safe Wallet, DCENT and Duelbits, which lost $7.8 million, $6 million and $5.9 million, respectively.
In a statement on Wednesday, CertiK said: "September was a stark reminder of how quickly the threat landscape can shift."
2026 losses reached $2.68 billion
CertiK's security dashboard shows 656 security incidents so far in 2026, with total losses reaching $2.68 billion.
A related report said SlowMist traced Bitget hack activity to an Aug. 31 zero-day exploit.
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