Spousal Theft of Bitcoin: A Complicated Case
Ping Fai Yuen, a resident of the UK, has accused his estranged wife of stealing over 2,323 Bitcoins, which he claims are worth around $172 million. According to court documents, this alleged theft took place in 2023 when his spouse reportedly used CCTV footage to uncover the backup passphrase linked to the crypto hardware wallet containing the Bitcoins. Recently, a judge has allowed the case to proceed, even after the couple previously sought to dismiss it due to the legal classification of Bitcoin in their jurisdiction.
Hardware wallets, like those made by Ledger or Trezor, are designed to keep users’ cryptocurrencies safe from online theft. However, if someone manages to access the backup recovery phrase, all that security doesn’t mean much. This issue was highlighted recently when funds were withdrawn from a confiscated crypto wallet in South Korea, with law enforcement agencies publicly sharing relevant seed phrases online.
The plaintiffs’ case is straightforward. It’s claimed that as the divorce was in progress, the first defendant, Yuen’s estranged wife, either alone or with her sister, acquired the seed phrase and took the Bitcoins. She allegedly did this by secretly recording Yuen to get the information. Court filings indicate that Yuen’s eldest daughter tipped him off about his wife’s intentions, which led him to install his own audio equipment to capture incriminating evidence. The recordings reportedly contain discussions about converting Bitcoin into traditional currency.
“You say your money is in Bitcoin, but with so many questions about such a significant amount, how will you explain it?” the defendant allegedly remarked in one of the recordings. This conversation included the potential of converting Bitcoin into cash in Hong Kong, where the main defendant resides. Following his discovery of the theft, Yuen confronted and assaulted her, resulting in a few weeks in jail until he was released on bail. He later pleaded guilty to several charges, as noted in court documents.
The Nuances of Cryptocurrency Ownership
This UK case sheds light on the complexities surrounding true ownership of crypto assets. The belief that “code is law” suggests that whoever holds the private keys has genuine ownership of the Bitcoin. Yet, this concept clashes with legal realities, as pressure can compel someone to transfer Bitcoins from one address to another.
The troubling trend of using threats against cryptocurrency holders to coerce them into transferring their assets has grown in recent years. Notably, celebrities within the cryptocurrency space have faced such threats in France, where tax officials have even been accused of leaking personal information of crypto holders to criminals. A disturbing incident in Arizona also involved teenagers being blackmailed into stealing millions in cryptocurrency during a home invasion.
While self-sovereignty over one’s finances is one of the appealing aspects of cryptocurrencies, scenarios like these illustrate that the security burden falls entirely on the user. Although the encryption used in Bitcoin is considered unbreakable—at least until quantum computers become a threat—the so-called “$5 wrench attack” remains a significant concern. This issue looms especially large when crypto assets are kept in a way that relies on a single physical point of failure.
