Record-breaking crypto hacks in April fueled by ongoing DeFi exploits

April marked an unprecedented spike in security breaches across the crypto sector. DeFi Llama stated on X that the month recorded the highest number of hacking incidents ever seen in the industry’s history.

While the total value of stolen assets did not surpass previous all-time highs, the sheer frequency of attacks set a new record. For the first time, the number of individual exploits is believed to have exceeded 20 incidents in a single month. Historically, there have been at least three months where total losses surpassed $1 billion, but April stood out for its volume rather than total dollar value.

Crypto commentator Stacy Muur also reported on X that at least 24 separate hacks had already taken place by mid-week, resulting in more than $600 million in cumulative losses.

Major DeFi Exploits Shake the Market

KelpDAO $292M Incident Triggers DeFi Shockwaves

The largest attack of the month targeted KelpDAO, resulting in approximately $292 million in losses. This incident ranked among the most significant exploits in decentralized finance history. It also triggered widespread concern across lending protocols, including Aave, due to potential bad debt exposure. In response, several DeFi participants stepped in with emergency liquidity support and donations to stabilize affected systems.

Drift Protocol $280M Exploit Raises Security Questions

Shortly after, Drift Protocol suffered another major breach on April 1, with losses exceeding $280 million. The exploit disrupted one of the leading Solana-based perpetual trading platforms and intensified concerns over the resilience of DeFi infrastructure under coordinated attacks.

According to the project, the incident was not a simple technical failure but part of a more complex and prolonged operation.

Cross-Chain Vulnerability and Hyperbridge Attack

Another notable exploit targeted Hyperbridge, a Polkadot-based protocol, leading to losses of around $2.5 million. The attacker initially extracted approximately 245 ETH before executing a forged cross-chain message that bypassed verification mechanisms tied to Merkle Mountain Range proofs.

By exploiting this weakness, the attacker was able to mint nearly 1 billion bridged DOT tokens, which were later sold on the market, adding further pressure on liquidity and trust in cross-chain infrastructure.

As discussions unfolded on X, some analysts argued that the nature of these incidents goes beyond smart contract vulnerabilities. One commentator, Curious Crypto, noted that several of the largest exploits were not simply coding errors but rather the result of prolonged social engineering campaigns targeting individuals with administrative access.

In the case of Drift Protocol, the team later described the breach as a “structured intelligence operation” that had reportedly been in preparation for around six months, highlighting the increasing sophistication of attackers in the space.

Late-Month Ethereum Wallet Draining Incident

Toward the end of April, on-chain analyst Wazz reported another active exploit affecting Ethereum mainnet wallets. According to the observation, hundreds of wallets, many inactive for over seven years, were drained by a single address.

Wazz flagged the event as an ongoing live attack, raising further concerns about legacy wallet security and long-dormant vulnerabilities being reactivated in modern exploit strategies.

Other Notable Hacks Earlier in the Year

April’s surge did not occur in isolation. The broader 2026 trend shows a steady escalation in both frequency and complexity of attacks:

• Earlier in the year, several DeFi lending protocols suffered multi-million-dollar flash loan exploits, exposing weaknesses in liquidity oracle design.

• A cross-chain bridge protocol in Q1 also lost tens of millions after attackers manipulated validator consensus timing.

• Multiple phishing-based wallet drains have continued to target retail users, especially through fake airdrop campaigns and impersonated interfaces.

• Several centralized exchange API breaches have also been reported, where attackers exploited compromised credentials rather than blockchain vulnerabilities.

Taken together, these incidents reflect a shift in attacker strategy from isolated technical bugs toward multi-layered operations combining social engineering, infrastructure weaknesses, and cross-chain complexity.

The pattern emerging from April’s record-breaking wave of crypto exploits suggests that the industry is entering a more mature, but also more dangerous phase of its risk cycle.

Attacks are no longer purely opportunistic, instead, they increasingly resemble coordinated operations targeting governance structures, human access points, and interoperability layers. As capital in decentralized systems grows, so does the incentive for sophisticated adversaries to move beyond code-level vulnerabilities and exploit the human and systemic layers that secure them.

This evolution makes it clear that the next phase of crypto security will depend less on patching smart contracts and more on strengthening operational discipline, access control, and behavioral security across the entire ecosystem.