There's increasing support for security keys, but don't be surprised if they're not accepted at every site you try. To use a security key, you first have to enroll it with each site or service you want to protect. While they can take many forms, most security keys are small, key-sized devices that can uniquely identify themselves to sites and services. When Google required employees to use hardware MFA keys, account takeovers effectively vanished. For another, people tend to reuse passwords, meaning that if one account is compromised, all the other accounts with the same password are also at risk.īecause it's extremely unlikely an attacker will have more than one of these forms of authentication, MFA makes it much harder for bad guys to take over accounts. For one thing, we're bad at remembering them and even worse at picking unique, complex passwords that can stand up to attacks. The authentication method most of us are familiar with is being required to enter a username and password. While there are many ways to do MFA, one of the best (and definitely the coolest) is with a security key-a tiny device that fits on your key chain.
Fortunately, multi-factor authentication (MFA) can protect against account takeovers. With it, a bad guy can do all sorts of nefarious deeds in your name, and if they get control of your email account they can use password recovery features to take control of even more of your accounts. One of the greatest threats against your personal security is an attacker taking control of an online account.
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