April 2026 has been recorded as the darkest period in the history of crypto industry security. Based on data from DeFiLlama, total losses due to hacks during the month exceeded $600 million, with the number of incidents also reaching a record high.

This phenomenon marks a significant increase both in the frequency and complexity of attacks in the digital asset sector.

Surge in Number of Attacks in a Single Month
Throughout April, approximately 28 to 30 hacking incidents were recorded, targeting various crypto protocols, ranging from DeFi and bridges to blockchain infrastructure.

On average, nearly one attack occurred each day, making April the most intensive month of hacking activity since the crypto industry emerged.

Most of the attacks were relatively small, but their sheer volume indicates increasing aggressiveness from cybercriminals within the ecosystem.

Two Major Cases Dominate Total Losses
Out of the dozens of incidents, two major cases accounted for the majority of total losses:

1. Drift Protocol
   Estimated loss: around $280 million
   Type of attack: system manipulation and social engineering
   Impact: significant disruption to platform operations
   This case drew attention because it did not purely stem from a smart contract bug, but rather from exploitation of system mechanisms and human factors.
2. KelpDAO
   Estimated loss: around $290 million
   Type of attack: exploit in cross-chain mechanisms
   Impact: massive loss of funds
   The attack on KelpDAO highlights the high risks associated with bridge-based and interoperability protocols, which have now become prime targets for hackers.

Combined, these two incidents contributed nearly 90% of the total losses in April.

Shifting Attack Patterns
April’s data shows a shift in hacking trends:

• No longer dominated by smart contract bugs
• Increasingly involving:
  • Social engineering
  • System manipulation
  • Abuse of access (admin key compromise)
  • Bridge exploits

This indicates that crypto security now depends not only on code, but also on system design and operational management.

Bridges and Infrastructure Become Primary Targets
One of the most notable patterns is the rising number of attacks targeting:

• Cross-chain protocols
• Blockchain bridges
• Liquidity infrastructure

The complexity of interoperability systems creates more vulnerabilities that can be exploited by malicious actors.

Threats Becoming More Organised
In addition to the increase in attack volume, the actors behind these hacks are showing a higher level of organization.

Several reports even suggest the involvement of structured groups with advanced technical capabilities, targeting protocols with large liquidity pools.

Conclusion
The surge in hacks in April 2026 is a strong signal that the crypto industry continues to face serious security challenges.

With more than $600 million lost in just one month and nearly 30 incidents occurring simultaneously, the crypto ecosystem is entering a phase where threats come not only from code, but also from human factors, system design, and infrastructure complexity.

Moving forward, improving security standards, both technical and operational, will be crucial to maintaining user trust and industry stability.