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Binance Suffers $6.3 Billion Hack, Largest in Crypto History

Binance Suffers $6.3 Billion Hack, Largest in Crypto History

First seen 31 Oct 2026, 15:13 UTC • •
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ThreatCluster AI
ThreatCluster •October 31, 2026 at 16:12 UTC
  • •Binance's hack resulted in the theft of $6.3 billion, the largest in crypto history.
  • •Experts warn that more security incidents are likely as AI exploits vulnerabilities.
  • •Binance plans to cover losses and resume withdrawal services within 34 hours.

On October 31, 2026, Binance reported a significant security incident resulting in the theft of $6.3 billion in client assets, marking the largest crypto theft ever. The attack has raised concerns about the safety of funds stored on cryptocurrency exchanges. Experts suggest that the incident is not surprising, given the increasing sophistication of cyberattacks, particularly those leveraging artificial intelligence. Binance has stated it will take full responsibility for the incident and aims to resume withdrawal services within 34 hours. Additionally, Polymarket, another platform, faced a separate breach earlier in the week, losing at least $2.7 million due to a third-party data provider hack. While some experts express caution about leaving funds on exchanges, others believe that the industry will adapt and improve security measures over time.

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Timeline

2026-10-31
Binance hack disclosed
$6.3 billion stolen from Binance in the largest crypto theft to date; the exchange takes full responsibility.
Cnbc
2026-10-31
Polymarket breach reported
Polymarket halted trading after a third-party data provider was hacked, leading to a loss of at least $2.7 million.
Cnbc

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Common questions

What should users do with their funds?
Users are advised to be cautious and consider withdrawing significant amounts from exchanges until security improves.
How will Binance compensate affected users?
Binance has stated it will cover the losses incurred by the hack, reassuring users about their funds.
What are the implications for crypto wallet safety?
The incident raises serious concerns about the security of funds on exchanges, prompting discussions on safer storage options.