When the value of 127,000 Bitcoins surged from $3.5 billion five years ago to $15 billion today, the story behind these numbers is far more striking than mere wealth growth.

A recent report by China's National Computer Virus Emergency Response Center revealed that the U.S. government's high-profile announcement in October 2025 to "seize" 127,000 Bitcoins from Chen Zhi, chairman of Cambodia's Prince Group, was actually a case of state-sponsored hackers stealing the same assets through cyberattacks—a classic "heist among thieves."

Behind this incident lies a more alarming trend: the increasing frequency of Bitcoin thefts globally and its deep entanglement with money laundering crimes. In the world of cryptocurrencies, where is the balance between technological freedom and risk control?

**The Collapse of the "Security Myth"** On December 29, 2020, the LuBian mining pool suffered a major hack, losing approximately 127,000 Bitcoins (worth $3.5 billion at the time, now $15 billion). The owner of these assets was Chen Zhi.

LuBian, founded in early 2020, stored its Bitcoin rewards in non-custodial wallets (cold or hardware wallets), which were considered the ultimate safe haven for crypto assets—unlike exchange accounts that could be frozen by legal orders. However, the private key generation algorithm used by LuBian had a fatal flaw, relying on 32-bit binary randomness instead of the recommended 256-bit standard, making it 10–30 times easier to crack.

After the hack, Chen Zhi and Prince Group repeatedly attempted to negotiate with the hackers but received no response. Surprisingly, the stolen Bitcoins remained untouched for four years before being moved in June 2024—an anomaly compared to typical hacker behavior.

Blockchain analysis suggests that the U.S. government-controlled Bitcoins match those stolen from LuBian. ARKHAM, a U.S. blockchain tracking platform, has flagged these addresses as U.S. government holdings.

**The Illusion of Anonymity** Bitcoin and other cryptocurrencies have long been marketed as "anonymous" and "censorship-resistant," but this incident proves they are not entirely secure. While blockchain transactions are public, advanced analysis techniques can link anonymous addresses to real identities.

Legal experts note that vulnerabilities in private key management or legal seizures can compromise asset security. Despite crypto's decentralized ideals, its connections to the real economy (exchanges, custodians) remain centralized and regulated.

**Cross-Border Crime and Money Laundering** On October 14, 2025, the U.S. Department of Justice announced charges against Chen Zhi for telecom fraud and money laundering, seeking forfeiture of his 127,000 Bitcoins ($15 billion)—the largest such seizure in U.S. history. The U.K., South Korea, Singapore, and Hong Kong also froze his assets.

Prince Group, posing as a legitimate business, allegedly lured workers into telecom scams under duress. Bitcoin played a key role in laundering proceeds through techniques like "spray-and-funnel," splitting large sums into small, untraceable transactions before reassembling them.

Cryptocurrency mining, via LuBian, was another laundering channel. Chen reportedly boasted that his mining operations had "no costs" since capital came from scam victims.

Globally, crypto money laundering exceeded $120 billion in 2024, accounting for 15% of illicit financial flows. Weak identity verification, cross-border fluidity, and lax platform oversight make crypto an attractive tool for criminals.

**Regulatory Challenges** Experts emphasize that while blockchain transparency allows traceability, inconsistent global regulations and advanced obfuscation techniques complicate enforcement. Criminals exploit jurisdictional gaps, forcing authorities to develop sophisticated on-chain analytics.

The long-term perception of Bitcoin—whether as a "natural tool for crime" or a regulated financial asset—depends on stronger governance, international cooperation, and industry compliance.

In summary, the LuBian heist underscores systemic risks in crypto security and the urgent need for robust safeguards, from secure key generation to real-time monitoring. For users, caution and verified tools are essential to avoid falling into traps.