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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.
Likely as not, person charged with crime is in custody. Police force person to unlock phone, then police install malware and wait for comms to come in.
You'd have to be a real idiot to keep using the same phone after the police arrested you and forced you to unlock it, especially for doing crimes.
This. Even I would be too paranoid to keep using a phone (or other device for that matter) that the police confiscated before.
You're in custody, your friends don't know you're locked up. Who's the idiot?
Well, people doing crimes aren't known for their intelligence.