This $1.5 billion hack is exposing just how ‘irreversible’ stolen crypto really is

Blockonomics
Blockonomics



Bybit sued North Korea, its Reconnaissance General Bureau, and Lazarus Group in the US District Court for the District of Columbia. The exchange won a preliminary injunction blocking unnamed defendants from moving or selling stolen crypto.

Public court reporting describes the order as covering those identified assets, without confirming the full $1.5 billion stolen in February 2025 or disclosing the dollar value the injunction protects.

This injunction landed roughly 532 days after the hack—about 17 months after North Korean hackers pulled off the largest crypto theft on record. Chainalysis tracked a consistent laundering pattern by DPRK-linked groups after a major theft, moving stolen funds through exchanges, bridges, mixers, and laundering services over roughly 45 days.

Coordinated action by industry partners froze $42.9 million in the first days after the theft, and mETH Protocol recovered another 15,000 cmETH, worth nearly $43 million. Combined, that early save came to about $85.9 million, roughly 5.9% of the $1.46 billion stolen.

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Elliptic, citing a six-month review from zeroShadow, said more than $1 billion of the stolen funds had already moved through the laundering pipeline well before this new court order existed.

Whatever value the injunction protects now probably represents a small residue that never fully escaped that pipeline.

Event / metric Figure What it shows
Bybit hack date Feb. 21, 2025 Starting point of the largest crypto theft on record
Reported court injunction timing ~532 days later Legal process arrived roughly 17 months after the theft
DPRK laundering cycle ~45 days Stolen funds often move through the main laundering pipeline far faster than courts move
Early frozen funds $42.9 million Industry coordination worked immediately after the hack
cmETH recovered ~$43 million Token/protocol-level recovery was possible early
Total early save ~$85.9 million Roughly 5.9% of the $1.46 billion theft
Funds reportedly laundered by six-month mark $1 billion+ Most value likely moved before the new injunction existed

Why a blockchain never has to reverse anything

Stolen crypto becomes stoppable the moment it lands somewhere a court order can reach: an exchange, a stablecoin issuer, a custodian, or any other operator capable of freezing what passes through it.

That is why the FBI asked exchanges, bridges and RPC operators to block Lazarus-linked transactions within days of the hack. It is also why Bybit’s own stolen stETH and cmETH were swapped into native ETH almost immediately.

Elliptic says token issuers can often freeze wallets holding their own tokens, but no central party directly controls ETH or Bitcoin balances. Converting stolen liquid-staking tokens into native ETH removes one of the easiest tools available to victims for freezing assets.

Native ETH or Bitcoin sitting in self-custody is nearly impossible to freeze directly, while stablecoins sit at the other end, since issuers can blocklist addresses depending on the chain and contract design.

Centralized exchanges sit close behind, able to block withdrawals or comply with a warrant. Bridges, swap services and DAO-controlled recovery wallets fall somewhere in between, and OTC brokers operating across borders remain the hardest targets of all.

A Lazarus-linked theft from the crypto platform Rain drew a similar response. The FBI froze roughly 2,204 SOL at the exchange WhiteBIT and served a seizure warrant. WhiteBIT transferred the funds to the US government, and a federal court later granted default judgment forfeiting the crypto outright.

Asset location Freeze difficulty Who can act Why it matters
Native ETH or BTC in self-custody Very hard No central controller Transactions are irreversible and balances cannot be directly frozen by an issuer
Liquid-staking tokens Medium Token issuer / protocol operator Issuers or protocols may have tools to block or recover some assets
Stablecoins Lower Stablecoin issuer Issuers can often blocklist addresses depending on contract design
Centralized exchanges Lower Exchange / law enforcement Exchanges can freeze withdrawals or comply with seizure warrants
Bridges and swap services Mixed Operator, DAO, court, or governance process Depends on control structure and jurisdiction
OTC brokers Very hard Law enforcement, sanctions authorities Cross-border laundering makes recovery slower and less predictable

A second fight brewing over who gets frozen funds

Holders of old terrorism judgments against North Korea served a restraining notice on roughly 30,766 ETH, worth about $71 million, that had been frozen when an unrelated exploit hit the Kelp protocol on Arbitrum.

Arbitrum’s governance records show a DAO vote that later moved ETH to an Aave-controlled wallet, with the restraining notice accompanying the assets to their new location.

No public record shows that competing creditors have claimed the assets Bybit is now pursuing, though the Kelp episode establishes a real pattern. Once DPRK-linked crypto sits frozen somewhere reachable, other parties holding judgments against North Korea can try to get in line for it too.

The US Treasury Department designated Lazarus Group, Bluenoroff and Andariel in 2019 as entities controlled by North Korea through their ties to the Reconnaissance General Bureau. Treasury says the country’s cyber operations generate revenue that can fund weapons and ballistic missile programs.

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