HomeCrypto News StoriesBlockchainBlockchain is Not Responsible for Bybit’s $1.5 Billion Hack

Blockchain is Not Responsible for Bybit’s $1.5 Billion Hack

Date:

  • Hackers stole $1.5 billion from Bybit using blind signing and UI tricks.
  • North Korea’s Lazarus Group may be behind the massive crypto hack.
  • Bybit is improving security and offering rewards to recover funds.

A jaw-dropping $1.5 billion vanished from the crypto exchange Bybit in what has been dubbed the biggest digital heist in the market’s history. The breach wasn’t caused by a failure in blockchain technology, according to Hackernoon insights.  In fact, the core blockchain tech worked just fine. The breakdown happened where it always seems to—with people. This wasn’t about encryption cracking or wallet breaking. It was about manipulation and deception at a human level.

Bybit’s routine operation of moving Ethereum from a secure cold wallet to a semi-online warm wallet became the perfect opportunity for hackers to strike. The cold wallet is supposed to be the fortress, completely offline and untouched by internet threats. But as the crypto moved into a more accessible warm wallet to support daily trading needs, the doors opened just wide enough for trouble to sneak in.

A developer’s machine was compromised, granting the attackers access to the internal software used to approve wallet transfers. That’s where they rewrote the rules—literally. They embedded malicious code right into the interface employees used to review transfers. The screen showed what looked like normal transactions. But behind the scenes, funds were getting redirected straight to hacker-controlled accounts.

How Blind Signing Opened the Door to a $1.5B Heist

One critical weakness the attackers exploited was blind signing. It’s a process where users approve transactions without seeing full details. In Bybit’s case, employees signed off on transfers they couldn’t fully verify. What they saw on their screen wasn’t the reality. The hack didn’t just use tech—it used people’s trust in that tech.

The combination of UI manipulation and blind signing turned out to be devastatingly effective. This wasn’t a failure of crypto systems. It was a wake-up call about what happens when good tech meets bad habits. North Korea’s Lazarus Group, known for funding the regime’s sanctioned programs by targeting crypto firms, is believed to be behind the attack.

Even though blockchain transactions are public and traceable, cashing out $1.5 billion is no easy task. Many of the stolen funds have already been tracked. Some were even converted into privacy-focused tokens like Monero, making the trail harder to follow. But the public nature of blockchain makes laundering large sums tricky—every move leaves a footprint.

Race to Repair: How Bybit Is Trying to Rebuild Trust

On the day of the attack, Bybit quickly moved to secure emergency funding and restore the acquisition of liquidity, and in addition to that, they offered a high-paying reward to anyone who helped or is the person responsible for recouping or freeze the stolen assets. They also built a real-time guiding board so that the sleuths could watch the progress live.

Source: Bybit

For now, the exchanges are being recommended to absolutely leave blind signing out. Transparent transaction signing—where users can see and approve what they’re buying—must be the standard. It’s not just the numbers we are talking about. It’s the truth that counts more than anything else.

But the most popular ones are MPC wallets, or multi-party computation systems. In other words, no single vulnerable key will permit intruders to obtain full access. It’s not about the fragile seed phrases anymore but rather a move toward something much harder to break.

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Bena Ilyas
Bena Ilyas
With over 4 years of crypto writing experience, Bena strives to make crypto, blockchain, Web3, and fintech accessible to all. Beyond cryptocurrencies, Bena also enjoys reading books in her spare time.

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