Answer: It can be quite disconcerting to get a random message from a service provider with a security code, but you're experiencing one of the benefits of two-factor authentication.

If you are getting ‘security codes’ from a standard 10-digit phone number, it isn’t PayPal at all-- here's what to do.

Was it really PayPal? If you are getting “security codes” from a standard 10-digit phone number, it isn’t PayPal at all. PayPal text messages will come from a “short code” such as 729 ...