Bybit Hack 2025: The Largest Crypto Heist in History-$1.5B Stolen

Bybit Hack: The Largest Crypto Attack in 2025-How $1.5B Was Stolen

Bybit, a cryptocurrency exchange, was hacked, resulting in the theft of about 401,347 Ethereum (ETH), worth over $1.46 billion. This is the biggest crypto hack ever. The incident has raised major concerns about the security of digital asset platforms and user funds. Experts are urging exchanges to strengthen their security measures to prevent future attacks.

The Bybit $1.4 billion hack of 2025, is the largest crypto theft in history. It far exceeds previous record-breaking hacks, including the Poly Network hack in 2021 ($611 million) and the Ronin hack in 2022 ($540 million). This data is taken from x post.

The Bybit hack in 2025 is the biggest crypto theft in history, with a massive $1.4 billion stolen. It is the first major hack since 2022 and the largest ever, as no other crypto theft has ever crossed the $1 billion mark. This breach is also more than double the amount stolen in the Poly Network hack ($611 million), which was previously the biggest. This makes the Bybit hack a shocking and unprecedented event in the crypto world. 

This event highlights ongoing security challenges in the crypto industry, showing that even major platforms like Bybit are vulnerable to massive cyberattacks.

How the Bybit Hack Happened

The Bybit hack happened during a routine transfer between its cold wallet and warm wallet. Hackers changed the signing system to show the correct address, but secretly altered the smart contract to gain access. This allowed them to steal funds without being detected right away.

Following the breach, Ethereum’s price experienced a sharp decline as market panic set in, with investors reacting to the massive security lapse and potential liquidation of stolen funds.

Investigations revealed that hackers used phishing and social engineering to steal login details, allowing them to bypass security and exploit Bybit’s multi-signature system. Early reports suggest the Lazarus Group, a North Korean-backed hacking team, may be behind the attack, as experts found similarities to their previous hacks, including the January 2025 Phemex breach.

Lazarus Group Suspected

Blockchain investigator ZachXBT and security experts found evidence linking the attack to North Korea’s Lazarus Group, a hacking team known for major crypto thefts. They were also behind the January 2025 Phemex hack, where $30 million was stolen.

On February 22, ZachXBT reported that the hackers had started moving 5,000 ETH from the Bybit hack to different addresses to launder the funds. Further analysis by Arkham confirmed connections between this attack and previous Lazarus Group exploits.

Bybit Faces Dual Scandals Amid Security Concerns

With both an internal fraud case and the largest crypto hack in history, Bybit faces intense scrutiny over its security measures. Ex-WeChain Manager Jailed for 10 Years for Stealing $5.7M Through Payroll Manipulation and This Hack of $1.5 Billion. The combination of internal theft and external cyberattacks highlights the urgent need for stronger security protocols in the cryptocurrency industry.