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WhatsApp and Signal messages at risk of surveillance following EncroChat ruling, court hears | Computer Weekly
(www.computerweekly.com)
This is a most excellent place for technology news and articles.
The headline is a little misleading. The actual ruling is that police can obtain warrants to install surveillance malware on phones when they have evidence the owner is using it to communicate about crimes.
Could malware be installed without access to the physical phone? How would this be achieved. Is it with a backdoor from the phone manufacturer or infected somehow from the sim card service provider.
Can be done remotely on any mobile platform. Look up pegasus if you're interested.