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North Korean Hackers Use LinkedIn Phishing for $6.3 Billion Binance Heist

Sophisticated social engineering and malicious software enabled the largest cryptocurrency theft in history.

Fortune | FORTUNE2 min

1Sophisticated Recruitment Phishing Scheme

North Korean hackers executed a massive $6.3 billion heist by targeting a Binance engineer through LinkedIn. The attackers posed as project directors and HR representatives to conduct fake job interviews. This social engineering tactic successfully persuaded the employee to download a malicious assignment, granting the hackers initial access to internal systems.

2Compromised Software Supply Chain

Beyond the LinkedIn scheme, hackers utilized a separate campaign involving a tampered version of the Homebrew software package. An engineer clicked on an internet advertisement promoting this malicious version, which allowed attackers to gather critical information about wallet management roles. Binance detected and removed this specific download, but the reconnaissance was already completed.

3Internal AI Tool Exploitation

Contrary to initial speculation, the breach did not rely on AI to bypass security. Instead, hackers used the compromised engineer’s laptop to access Binance’s own internal AI tools. This allowed them to pivot and gain control over other accounts, specifically targeting engineers with container deployment permission tokens on their personal machines.

4Systemic Targeting of Employees

Binance maintains a policy prohibiting employees in non-public-facing roles from keeping LinkedIn profiles. Despite this, the hackers successfully identified and contacted specific staff members. The company reported that it had previously detected and prevented 57 North Korea-related hacking attempts in 2026, highlighting the persistent nature of these targeted corporate recruitment scams.

5Financial Impact and Recovery Efforts

The attack resulted in a $6.3 billion loss, marking the largest theft in crypto history. Binance managed to recover $2.5 billion after Tether and Circle froze stolen stablecoins. The company suspended withdrawals for 48 hours following the incident and has since replenished 98% of the stolen funds using its own internal reserve assets.

6Operational Response and Stabilization

Following the breach, Binance re-enabled withdrawals on Saturday after a two-day shutdown. The company is currently working to acquire the remaining 2% of stolen funds, which involve less common currencies. Executives have publicly apologized for the disruption, emphasizing that all customer funds remain safe despite the severity of the unauthorized wallet access.

7The Rise of Recruitment Fraud

The use of fake recruiters by state-sponsored actors has become a widespread threat across the global corporate sector. These campaigns often span months, building false credibility through multiple interview rounds. Organizations must now treat professional networking platforms as high-risk attack vectors, requiring stricter verification processes for all external communications and recruitment-related activities.

8Security Implications for Infrastructure

This incident demonstrates how human-centric vulnerabilities can bypass robust technical defenses. By combining social engineering with internal tool exploitation, attackers effectively neutralized standard security protocols. The event serves as a critical reminder that internal permissions, such as container deployment tokens, require heightened monitoring to prevent lateral movement during a potential security compromise.

Original article: Fortune | FORTUNE — North Korean Hackers Use LinkedIn Phishing for $6.3 Billion Binance Heist