One October tally put crypto security losses at $6.48 billion, with a Binance incident accounting for most of the sum and showing how heavily the monthly figure depended on one event.
The tally attributed roughly $6.3 billion to Binance and covered 56 major events. Compared with September’s $766.49 million, the October figure was up about 745%. The Binance event ranked as the largest crypto security incident of 2026 so far.
The tally put roughly $3 billion tied to Binance in the frozen category. It did not provide a net-loss total combining frozen or recovered funds.
As of Oct. 31, the year’s 10 largest attacks accounted for about $8.6 billion, equal to 92.3% of losses in the tally. Those figures were calculated before deductions for funds later frozen or recovered. Binance led the ranking, which also included Drift, KelpDAO/LayerZero and COLDCARD Wallet.
CertiK’s dashboard offered a separate October measure, listing 89 incidents and $6.50 billion in total losses. It marked $3.03 billion as frozen or returned and put adjusted losses at $3.47 billion, figures also detailed in an earlier EconoTimes review.
Binance’s Oct. 30 update estimated the incident’s impact at about $6.3 billion, close to the monthly tally’s figure. The exchange’s statement refers to its estimate for that incident, while the tally measures losses across a broader set of security events.
The two October totals are not like-for-like measures: the tallies list different incident counts, and the 56-event tally gives no adjusted amount. CertiK’s dashboard reports both total and adjusted losses, with frozen or returned assets shown separately.
