Q1 2026 DeFi Losses Hit $169M Across 34 Protocols—But Don't Call It a Trend Yet

Crypto hackers extracted $168.6 million from 34 decentralized finance protocols in the first quarter of 2026, marking a substantial decline from the $1.58 billion stolen during the same period last year, according to DefiLlama data. While the quarterly figure might suggest improving security conditions, experts caution against reading too much into period-specific metrics—cryptocurrency theft follows market dynamics, not the calendar.

The Big Hits: Q1's Largest Exploits

Step Finance's private key compromise dominated Q1's attack landscape, with hackers absconding $40 million in January. That single incident set the tone for the quarter. The second-largest strike came shortly after: a smart contract manipulation that drained $26.4 million in ETH from Truebit on January 8. Rounding out the top three was another private key compromise targeting stablecoin issuer Resolv Labs on March 21.

Context matters here. Last year's Q1 saw catastrophic losses, largely driven by the $1.4 billion Bybit exploit. This year's numbers look rosier by comparison—but that comparison might be misleading.

Attack Cycles Follow Capital, Not Calendars

Nick Percoco, chief security officer at crypto exchange Kraken, offers crucial perspective for crypto traders and portfolio managers: cybercriminal activity spikes during bull markets and major infrastructure launches, not during fixed seasonal windows.

"Bull markets, major product launches and fast-moving growth phases all create more attractive conditions for attackers because more value is at stake and new infrastructure can introduce risk," Percoco explained to Cointelegraph.

Threat actors actively hunt where liquidity concentrates. As new value accumulates in emerging DeFi protocols or layer-2 solutions, attackers follow. This means predicting attack patterns based on quarterly or seasonal trends is largely futile. "Vulnerabilities can be exploited in any market environment, particularly in complex or rapidly evolving systems, underlining that security in crypto must be continuous," Percoco noted.

A Diverse Threat Landscape

The crypto security threat ecosystem isn't monolithic. North Korea-linked actors continue targeting Web3 infrastructure—they were recently suspected in the attack on Drift Protocol, a decentralized exchange that lost an estimated $285 million to a private key leak.

Beyond state-sponsored groups, the attacker mix includes highly coordinated teams targeting core infrastructure, organized cybercriminal networks, and opportunistic hackers scanning for smart contract vulnerabilities. "It is a broad and evolving mix, but they are ultimately targeting the same thing: global, liquid and accessible value," Percoco said.