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It's because most companies that use SMS "2FA" don't use it for your security, they use it for their security—phone numbers are a costly resource, and every pho
by nightpool 4y ago
It's because most companies that use SMS "2FA" don't use it for your security, they use it for their security—phone numbers are a costly resource, and every phone number an attacker spends to launch a spam attack is a phone number they'll never be able to use again. VoIP numbers flip that logic on its head by making it much cheaper to provision and allocate phone numbers. This also slightly protects user accounts because it makes it harder for attackers to "overwrite" a hijacked user account with their own bogus phone number during takeover, but that's a secondary goal—the main goal is spam reduction
- Maxburn 4y agoI get it, but it's still sad. Lots of places reject my Google Voice number, just because it's VoIP. I've had that number for ten years and the account it is under is protected by a popular security key. But that Prepaid SIM I have for a month and might ditch any time, no problem, everyone takes that.
- ForHackernews 4y agoYou can port other numbers to Google voice, which helps I think.