![]() Requiring a physical device, either in conjunction with a password or as part of passwordless authentication, means hackers who steal your password still can't breach your account. Hardware security keys, although uncommon, can be used to lock down your login at several major sites like Microsoft, Facebook, Google and Twitter. It also can communicate with newer Android smartphones and iPhone models with the wireless NFC link. The new key is bright blue like the earlier mainstream model, the $24.50 Security Key NFC, but offers the newer USB-C connector that's gradually supplanting the older USB-A ports on computers. Hardware security key maker Yubico has a cheaper new model, the $29 YubiKey Security Key C NFC, for consumers who want stronger protection for online accounts but don't need features in more expensive models. ![]()
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