Imagine losing your cryptocurrency not to a sophisticated cyberattack, but because someone simply glanced over your shoulder. That is exactly what happened in a landmark case out of eastern China, where a man was recently sentenced to nearly 11 years behind bars for stealing 107 Bitcoin. But the real headline isn’t just the heist itself—it’s that despite China’s notoriously strict bans on digital assets, the court officially recognized Bitcoin as legally protected property.
The Ultimate Betrayal: Memorizing a 12-Word Seed Phrase
In July 2023, a cryptocurrency investor named Feng asked his acquaintance, Zhang, for help cashing out 117 Bitcoin. Because Zhang had previously helped Feng navigate crypto transactions, he was viewed as a trusted advisor. However, during the wallet setup process, Zhang managed to secretly memorize 11 of the 12 words in Feng’s recovery seed phrase. By simply guessing the final word later on, Zhang was able to reconstruct the wallet entirely and drain 107 BTC from Feng’s account.
When Feng noticed the missing funds and alerted the authorities, digital forensics quickly traced the stolen assets back to Zhang. In court, Zhang tried to argue that he hadn’t profited from the theft, claiming he was merely “protecting” the assets and had lost money speculating on the market. Prosecutors destroyed this defense by presenting electronic records showing Zhang had successfully converted the assets and walked away with over $97,000 in proceeds. The Licang District People’s Court in Qingdao found him guilty, handing down a 10-year and nine-month prison sentence alongside a 100,000 yuan (roughly $14,700) fine.
Bitcoin as Legal Property and the Human Element of Crypto Security
This ruling carries massive weight in the legal and financial tech spheres. China has spent years enforcing sweeping crackdowns on cryptocurrency, explicitly banning both mining and trading. Yet, prosecutors successfully argued that Bitcoin meets the strict legal definition of “property.” Because it holds tangible value, it qualifies as an object of theft under Chinese criminal law, setting a fascinating legal precedent in a country that is largely hostile to the crypto industry.
Beyond the courtroom, this 107 BTC heist serves as a brutal wake-up call about operational security. Alvin Kan, the Chief Operating Officer at Bitget Wallet, pointed out that the biggest threat to digital wallets usually isn’t a complex technological hack—it is human vulnerability. While a standard 12-word recovery phrase is computationally secure against brute-force computer attacks, it is incredibly vulnerable to basic social engineering and “shoulder surfing.” Kan suggests that upgrading to 24-word seed phrases raises the security ceiling significantly, making human memorization nearly impossible. More importantly, this case proves exactly why users should never let anyone be physically present when generating or handling a recovery phrase. As the industry often warns, momentary exposure is still exposure, and trusting the wrong helper can cost you your entire portfolio.
