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Does that help against an attacker determined enough to hack you that he'll pay $1000 for a SIM swap? Surely he has channels to figure out your "secret" phone n
by Johnny555 3y ago
Does that help against an attacker determined enough to hack you that he'll pay $1000 for a SIM swap? Surely he has channels to figure out your "secret" phone number since you registered it with the service he's trying to hack into.
- catlikesshrimp 3y agoIt is more difficult to sim swap a foreign number from another company. Not impossible, of course. There is also that some services don't accept foreign numbers for authentication. Nor virtual phone numbers. But it adds a layer of protection, doesn't it? Your known public phone number is one, your verification phone is another one from another carrier.
- Johnny555 3y agoBut it adds a layer of protection, doesn't it? Your known public phone number is one, your verification phone is another one from another carrier. Is that really an additional layer of protection, or the same layer, slightly obscured? But probably not obscured from the attacker that managed to get your password and just needs the SMS verification code to get into your account.
- bonton89 3y agoYou can probably figure out most people's default phone number by googling their name and going to one of those crappy white pages sites. Then try to login/do a password reset to their services and compare the masked phone number to the ones on the site. No advanced hacking or special channels required. The trouble with compartmentalizing with a separate phone is that the company with your money probably also sold your secret phone number (that they only required for security) so it will probably also show up on that whitepages site.