Once the data of the tax agencies were leaked, the risk to the physical security of the holders of the Bitcoin rose again. There are concerns that if currency holders' identities, addresses or tax information flow, they may be locked in by outlaws, which in turn triggers an off-line, violent robbery known as “the wrench attack”.

What's a wrench attack?

Such attacks do not rely on hacking, but rather directly target individuals. By threatening, abducting or beating, the aggressor forces the victim to hand over his/her private keys, notes or to transfer his/her assets. This is a lower threshold than online theft and more difficult to prevent by technical means.

In the encryption industry, similar cases have been repeated in recent years. As the price of bitcoin rises and the size of individual holdouts expands, the real identity of the currencyholder increases in parallel with the risks once linked to the wealth of the chain.

Why are leaks so sensitive?

Tax information usually contains names, addresses, income, asset declarations or records related to encrypted transactions. Such information, if leaked, may help offenders to screen for high net value targets and to judge whether they hold rapidly transferable digital assets.

Forbitcoin users, the risk is more than just account security. The larger problem is that chain assets can be moved quickly, and that, once private key control is surrendered under duress, recovery is difficult.

  • Underline threats of violence are difficult to resolve by means of code.
  • The risk is significantly magnified when identity information is combined with hold information
  • Asset recovery is often more difficult when victims report to the police

Privacy and self-protection received renewed attention

Following the incident, the community reiterated its call to currency holders to reduce the public display of wealth information and to avoid tying up real identities with wallet addresses, social accounts or places of residence. For long-term holders, privacy management is not just an operational habit, but also a matter of real security.

Some security initiatives typically include decentralized custody of assets, restrictions on personal information exposure, careful handling of tax and transaction records, and stricter extraction and transfer arrangements for large-scale warehousing. These practices do not completely eliminate risks but help to reduce the probability of being targeted.

This warning also reflects the fact that the security of encrypted assets is extending further from chain loopholes and exchange controls to the real world. Data protection and personal privacy are becoming inescapable for the industry as the number of currency holders expands.