12 hours ago
Those who refuse could face up to a year in jail and a fine of up to HK$100,000 ($12,700; £9,600), and individuals who provide "false or misleading information" could face up to three years in jail.
The NSL was introduced in Hong Kong in 2020, in wake of massive pro-democracy protests the year before. Authorities say the laws, which target acts like terrorism and secession, are necessary for stability - but critics say they are tools to quash dissent.
Monday's amendments ensure that "activities endangering national security can be effectively prevented, suppressed and punished, and at the same time the lawful rights and interests of individuals and organisations are adequately protected", Hong Kong authorities said on Monday.
While law enforcement officials in many parts of the world have the authority to demand access to electronic devices as part of criminal investigations, the NSL covers a sweeping range of vaguely defined offences from secession, subversion, terrorism and collusion with external forces.
