Crypto hacks resulted in $2.78 billion in stolen funds in 2025, according to Finbold’s 2025 Cryptocurrency Market Report, based on incident data tracked by blockchain security firm SlowMist.
While the headline figure places 2025 among the costliest years for crypto security breaches, a closer look at the data reveals that losses were heavily concentrated in the early part of the year, with a clear slowdown emerging as the year progressed.
Bybit breach shaped the entire risk profile of 2025
The defining event of the year was the Bybit hack, which alone accounted for $1.5 billion in losses. That single incident represented more than half of all known crypto funds stolen in 2025 and dramatically skewed the annual total.
The breach stemmed from a wallet compromise, underscoring that custody and key management remain among the most critical points of failure in the digital asset ecosystem. Even as smart contract security has improved across many protocols, centralized wallet
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