Is . . . update, update, update. After the hoopla died down, the news media finally got it right – no, the CIA did not break the encryption of Signal and Confide. The problem was the devices themselves – older devices with older, often unpatched, operating systems. If your device has a vulnerable operating system, Signal and Confide aren't go to do you any good. If the device is compromised, a watcher can potentially view an encrypted message when you decrypt it to read it.
Stamp that into your brain – update, update, update – there's a reason that those updates are published. They don't just give you new features – they fix vulnerabilities.
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Digital Forensics/Information Security/Information Technology