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Everything You Need to Know About Password Managers

If you haven’t gotten around to using a password manager yet—one of the top safety practices recommended by security experts—you’re not alone. Even Lorrie Cranor, the just-departed chief technologist at the Federal Trade Commission, who helped protect consumers from online crimes, only started using one in late 2016. “I’ve been advocating password managers for years but I’d never actually tried one,” Cranor says.

These services can help defend against criminals by generating and storing a different password—one that's long and complicated—for each of your online accounts. But deciding which password manager to trust with the keys to your online life may seem daunting.

The nuts and bolts are confusing, too. Consumers may wonder how to set up the service, where their passwords will be stored, how to share passwords with a spouse, how password managers work with smartphone apps, and more. (I had those questions myself.) Here's a detailed explanation of what you need to know.

What Are Password Managers, Exactly?

The vast majority of us either use weak passwords or reuse passwords on multiple accounts. This makes us more susceptible to crimes such as identity theft. A password manager will generate, retrieve, and keep track of super-long, crazy-random passwords across countless accounts for you, while also protecting all your vital online info—not only passwords but PINs, credit-card numbers and their three-digit CVV codes, answers to security questions, and more—with encryption so strong that it might take a hacker between decades and forever to crack.

And to get all that security, you’ll only need to remember a single password, the one you use to unlock your so-called vault. Your login data will be locked down and, at the same time, remain right at your fingertips.

You'll still want to take other security measures, such as setting lock screens on all your devices, using two-factor authentication on valued accounts, and only using computers that you trust.

“Password managers are not a magic pill,” Lujo Bauer, a security researcher and associate professor at Carnegie Mellon University, says, “but for most users they'll offer a much better combination of security and convenience than they have without them. Everyone should be using one.”

Convinced, but don’t know which one to choose? Security experts say you shouldn't overthink it. “As long as it’s a name brand”—like 1Password, Dashlane, KeePass or LastPass, the four most popular options— “what password manager you use largely comes down to your personal preferences,” says Dan Guido, CEO of digital security firm Trail of Bits. “At the end of the day, the most important thing is that you find it easy to use so you’ll stick to it.”