Netzpoltik details that police are able to gain access in this way either through physical access to someone’s phone or by intercepting verification codes via a state-sanctioned phishing attack or intercepting SMS messages via telephone surveillance

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[–] 16 points 1 day ago (2 children)

Signal doesn't sync previous history so only new messages since linking are affected. I guess sending notifications to previous devices about link status would be helpful.

Last I checked linked devices could only be computers, and linking didn't involve phone numbers at all, so sim cloning and sms interception shouldn't work, only qr linking, but I'm not sure that still is the case

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