Don't lose your Google info or Gmail archives to a password hack. Set up two-step authentication to protect your most important assets.
Two-step authentication is the most prevalent way to secure your accounts: It asks you to authenticate that you are who you say you are by supplying not only your password, but a unique code supplied from your phone or an external app. It ensures that those accessing your accounts have access to your physical devices as well as your virtual passwords, and makes a simple password crack or social engineering hack a lot more insufficient in actually accessing your personal data.
Google was one of the first companies to offer two-step authentication for its user accounts; the company even created an option for third parties who want to offer two-step support for their services called Google Authenticator. Companies like Facebook, Tumblr, and Dropbox all use Google's service, as does Google itself.
As such, Google's experience with two-step authentication makes it a remarkably simple process to set up. Here's what you need to do.
And you're set! Google will now send your phone a six-digit code for any app that uses Google's web interface to authenticate your account.
You can use Google Authenticator for a slew of different services in addition to your Google Account; you just need to make sure they have code generation turned on. Each service has a slightly different way of enabling this, but in general you should find it under the Security section of your preferences.
Enable per-app passwords
Though most third-party Mac apps that hook into Google's services use the company's web interface to authenticate your account, support for this on the system level for iOS and OS X isn't quite there yet — though it is coming in iOS 8.3 and OS X 10.10.3.
In the meantime, you don't have to sacrifice your two-step security elsewhere until those updates come around: You can use your traditional username and password fields by generating one of Google's per-app passwords. They're not as secure as two-step authentication, but it guarantees that if someone breaks into that application, they'll have a one-time password only good for that program and can't get into your account on the web.
To access per-app passwords for your Google account, visit your Google account settings, then under the Signing in section, click on 2-Step Verification.
From there, select the App-specific passwords tab and click the Manage application-specific passwords button.
Once you're in the management section, you can generate a new app-specific password for your application, or revoke passwords for any old applications you no longer use or that may have been compromised.