Hong Kong police can demand encryption keys under new national security law

As detailed in Schneier on Security, Hong Kong authorities have enacted a new law that significantly impacts digital privacy and security for individuals, including those transiting through the airport.

Effective March 23, 2026, Hong Kong police can demand individuals reveal encryption keys protecting electronic devices such as computers and phones. This revised enforcement of the National Security Law, as alerted by the U.S. Consulate General, allows authorities to compel individuals to provide passwords or other assistance to access these devices. Refusal to comply is now a criminal offense. Furthermore, police powers have been expanded to seize and retain devices if they are deemed connected to national security offenses.

This development raises significant concerns regarding personal privacy and data security in Hong Kong. The ability for law enforcement to compel decryption and seize devices could have broad implications for international travelers and businesses operating in or transiting through the region.

Source: Schneier on Security