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Authy got hacked, and 33 million user phone numbers were stolen
(appleinsider.com)
This is a most excellent place for technology news and articles.
I can't even begin to stress what a terrible idea that is. You absolutely don't want to make bulk-rekeying possible unless you like getting all of your accounts compromised at once.
If there's a benefit to such a tool would bad actors have already developed one?