Lazarus Group

The Democratic People's Republic of Korea (DPRK), operating primarily through state-sponsored hacking units designated as the Lazarus Group, TraderTraitor, and APT38, has stolen an estimated $6.75 billion in cryptocurrency since 2016 across dozens of major exploits. These operations are attributed by the FBI, OFAC, CISA, and allied governments to North Korea's Reconnaissance General Bureau and are conducted to fund the regime's weapons of mass destruction and ballistic missile programs in circumvention of international sanctions. DPRK-linked hackers are responsible for the largest single crypto theft in history — the $1.5 billion Bybit hack in February 2025 — and continue to operate at unprecedented scale and sophistication.

Tapioca DAO is an omnichain DeFi money market built on LayerZero, offering a CDP stablecoin (USDO) and isolated lending markets (Singularity/Big Bang) across Arbitrum and BNB Chain. On October 18, 2024, the protocol suffered a critical security breach when a team member was targeted by a social engineering attack attributed to North Korea's Contagious Interview campaign, resulting in private key compromise, drainage of TAP token vesting contracts, and the minting of 5 quintillion USDO. Approximately $4.4–4.7 million was stolen before a partial counter-exploit recovered roughly 996 ETH (~$2.7 million), leaving the protocol treasury down approximately 45% and the TAP token price collapsed over 95%.

Garden Finance is a cross-chain Bitcoin bridge protocol launched in 2023 by former Ren Protocol developers, using Hash Time Locked Contracts (HTLCs) and an intents-based solver network to enable atomic swaps across Ethereum, Solana, Arbitrum, Base, and other chains. On October 30–31, 2025, one of its largest solver operators was compromised via a leaked private key, resulting in approximately $11.4 million in stolen assets that were subsequently laundered through Tornado Cash. Prior to the exploit, blockchain investigator ZachXBT alleged that over 80% of the protocol's recent fee revenue was derived from laundering funds stolen in the February 2025 Bybit hack, which the Lazarus Group (DPRK) perpetrated for approximately $1.4 billion.

Tornado Cash is an open-source, non-custodial cryptocurrency mixing protocol on Ethereum, launched in 2019, that obscures the on-chain link between deposit and withdrawal addresses. The U.S. Treasury sanctioned the protocol in August 2022 over its alleged use by the North Korea-linked Lazarus Group and other illicit actors to launder billions of dollars; those sanctions were struck down by the Fifth Circuit in November 2024 and formally lifted by OFAC in March 2025. Separately, co-founder Alexey Pertsev was convicted of money laundering in the Netherlands in 2024 (appeal pending), and co-founder Roman Storm was convicted in August 2025 of one count of conspiring to operate an unlicensed money-transmitting business while a New York jury deadlocked on more serious money-laundering and sanctions-violation charges that remain unresolved pending post-trial motions and a possible retrial.

KelpDAO is a liquid restaking protocol built on EigenLayer, founded in 2023, that issues rsETH as a yield-bearing liquid restaking token. On April 18, 2026, attackers attributed to North Korea's Lazarus Group (TraderTraitor / UNC4899) exploited a single-point-of-failure DVN configuration on KelpDAO's LayerZero bridge to drain 116,500 rsETH worth approximately $292 million — the largest single DeFi exploit of 2026. The attack triggered $13.21 billion in DeFi TVL outflows within 48 hours and precipitated an industry-wide bailout coalition called DeFi United, which ultimately restored rsETH to full backing by May 25, 2026.

Nexera (formerly AllianceBlock) is a blockchain infrastructure protocol focused on compliant real-world asset tokenization, operating primarily on Ethereum. In August 2024, a threat actor later attributed to North Korea's Lazarus Group used social engineering and BeaverTail malware to steal smart contract management credentials, enabling unauthorized transfer of 47.24 million NXRA tokens valued at approximately $1.9 million. The team mitigated further losses by zeroing out and subsequently burning the 32.5 million tokens that remained in the attacker's wallet, limiting confirmed liquidated losses to roughly $449,000.

WazirX is an Indian cryptocurrency exchange co-founded in 2018 by Nischal Shetty, Sameer Mhatre, and Siddharth Menon that suffered the largest crypto hack in Indian history on July 18, 2024, when approximately $234.9 million in user assets were stolen from a Gnosis Safe multisig wallet via a sophisticated supply-chain-style attack attributed by Elliptic, ZachXBT, and a joint US-Japan-South Korea government statement to North Korea's Lazarus Group. The hack triggered suspension of all withdrawals, a Singapore court-supervised restructuring process in which users are expected to recover approximately 55% of their assets, and ongoing regulatory and law enforcement scrutiny in India.

BitoPro is a Taiwanese centralized cryptocurrency exchange operated by BitoGroup, serving over 800,000 users with TWD (New Taiwan Dollar) fiat on/off-ramps. On May 8, 2025, the exchange suffered an approximately $11.5 million hot wallet theft attributed to North Korea's Lazarus Group via a social-engineering and AWS-token-hijacking attack. The exchange did not publicly disclose the breach for approximately 25 days, only confirming the incident after on-chain investigator ZachXBT flagged suspicious outflows on June 2, 2025.

Cardano (ADA) holders face a persistent and multi-vector threat landscape that includes deepfake giveaway scams impersonating founder Charles Hoskinson, social media account hijackings used to promote fraudulent tokens, phishing campaigns distributing credential-stealing malware disguised as wallet software, and NFT-based wallet drainers. The Cardano Foundation's own X account was compromised in December 2024, resulting in the promotion of a fake token and false regulatory claims. State-sponsored actors including the North Korean Lazarus Group have also targeted ADA holders through the Atomic Wallet supply chain attack.