The Australian government on Friday proposed a new cybersecurity law to force global technology companies such as Facebook and Google to help police by unscrambling encrypted messages sent by suspected extremists and other criminals.
But some experts, as well as Facebook, warned that weakening end-to-end encryption services so that police could eavesdrop would leave communications vulnerable to hackers.
The new law would be modeled on Britain's Investigatory Powers Act, which was passed by the British Parliament in November last year and gave intelligence agencies some of the most extensive surveillance powers in the Western world, the government said.
The Australian bill that would allow courts to order tech companies to quickly unlock communications will be introduced to parliament by November, officials said.
Under the law, internet companies would have the same obligations telephone companies do to help law enforcement agencies, Prime Minister Malcolm Turnbull said. Law enforcement agencies would need warrants to access the communications.
"We've got a real problem in that the law enforcement agencies are increasingly unable to find out what terrorists and drug traffickers and pedophile rings are up to because of the very high levels of encryption," Turnbull told reporters.
"Where we can compel it, we will, but we will need the cooperation from the tech companies," he added.
The government expected resistance from some tech companies, many of them based in the United States. But the companies "know morally they should" cooperate, Turnbull said.
"We need to say with one voice to Silicon Valley and its emulators: 'All right, you've devised these great platforms, now you've got to help us to ensure that the rule of law prevails,'" he added.
Facebook said it had a protocol to respond to requests for police help. But the social media giant said it could not read individual encrypted messages.
"Weakening encrypted systems for them (police) would mean weakening it for everyone," a Facebook statement said on Friday.
Australia was a major driver of a statement agreed at the Group of 20 leaders' summit in Germany last week that called on the tech industry to provide "lawful and non-arbitrary access to available information" needed to protect against terrorist threats.
The Australian Federal Police say the proportion of communication traffic they monitor that was encrypted had grown from 3 percent to more than 55 percent in only a few years.
Police say 65 percent of organized crime investigations, including regarding terrorism and pedophile rings, involved some kind of encryption.
(Source: AP)