Strong passwords are .css-1h1us5y-StyledLink{color:var(–interactive-text-color);-webkit-text-decoration:underline;text-decoration:underline;}.css-1h1us5y-StyledLink:hover{-webkit-text-decoration:none;text-decoration:none;}very important, but they’re not enough to protect you from cybercriminals. 

Passwords can be leaked or guessed. The key to online security is protecting your account with a strong secondary measure, typically a single-use code. This is referred to as “two-factor authentication,” or 2FA, as the nerds know it.

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This post first appeared on wsj.com

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