evidence: Criminals work to get malware on your devices so they can steal personal information, like your usernames and passwords, bank account numbers, or Social Security number. They use this information to commit identity theft. If you think someone may have stolen your information or identity, visit IdentityTheft.gov. [...] - Security pop-up warnings from real tech companies will never ask you to call a phone number. If you spot either of those things, you know it’s a scam.