Crypto security losses reached $1,26 billion in the third quarter of 2026, according to data from CertiK. This figure represents a 53,9% increase compared to the $819,4 million recorded in the second quarter of the year.
The number of security incidents rose by approximately 13%, growing from 219 in the second quarter to 247 in the third. September was the most significant month, accounting for $769 million in losses across 99 separate security events.
The hack of the Bitget exchange, which resulted in losses of $387,5 million, was the largest incident of the quarter, representing 31% of the total. Bitget reported that attackers exploited a vulnerability in a third-party security product to forge withdrawal commands.
Other major incidents in the third quarter included an exploit on the Liquid Network totaling $319 million, a Tectonic incident involving $120 million, and the theft of $112,7 million from Coldcard.
For the month of September, CertiK reported that $273 million was either frozen or returned, bringing the adjusted losses for that month to $495,3 million. Exploits accounted for $734 million of the total losses recorded in September.
