When it comes to password alternatives, the USB dongle YubiKey Neo is a popular option for providing two-factor authentication; it has been certified as providing the “highest level of security.” The device has been lauded by third parties “for its tight security and ease of use.”
People who use Gmail and other Google services now have an extra layer of security available when logging into Google accounts. The company today incorporated into these services the open Universal 2nd Factor (U2F) standard, a physical USB-based second factor sign-in component that only works after verifying the login site is truly a Google site.
2-Step Verification offers a strong extra layer of protection for Google Accounts. Once enabled, you’re asked for a verification code from your phone in addition to your password, to prove that it’s really you signing in from an unfamiliar device. Hackers usually work from afar, so this second factor makes it much harder for a hacker who has your password to access your account, since they don’t have your phone.
Security Key works with Google Accounts at no charge, but you’ll need to buy a compatible USB device directly from a U2F participating vendor. If you think Security Key may be right for you, Read more from Google