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Two-factor authentication explained: How to choose the right level of security for every account

Got questions about security keys, authenticator apps, SMS, or iCloud? We've got all the answers
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Michael Simon/IDG
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  • Security
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  • Google
Michael Simon has been covering Apple since the iPod was the iWalk. His obsession with technology goes back to his first PC—the IBM Thinkpad with the lift-up keyboard for swapping out the drive. He's still waiting for that to come back in style tbh.

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