Cryptocurrency has faced significant security challenges, losing $26.9 billion to hacks since 2017 while generating $47 billion in on-chain revenue. This means that for every dollar earned, 57 cents have been stolen, according to data from Lorenzo Valente, director of research at ARK Invest. The analysis compared revenue from 27 major crypto projects with hacking losses tracked by DefiLlama, revealing that while revenue generally outpaced theft between 2021 and 2025, the trend reversed in 2026 due to the Binance hack.
The Binance incident, which saw $6.3 billion stolen at the end of October, pushed 2026 losses above revenue. The exchange attributed the breach to a compromised DevOps engineer’s laptop, allowing unauthorized withdrawals. Binance co-CEO Richard Teng later clarified that the attack involved multiple breach points, not a single action. The exchange froze about $3 billion of the stolen funds and pledged to cover all losses using its SAFU funds and reserves.
The FBI and blockchain security firms linked the hack to TraderTraitor, a group allegedly tied to North Korea. However, Pyongyang denied involvement, accusing the U.S. of political provocation. Valente summarized the situation bluntly: “Security is the bottleneck.”