Stealing your passwords is much easier than you think. Use 2-Step Verification to add extra security. | AndroidGuys. Sometimes, I think that I am talking to myself. I keep writing posts about computer security, and many of you ignore them. Well, today I am going to tell you about the most important security tool you can use to protect your online and mobile life. If you don't use it for every app for which it is available, you are risking everything. Your online identities can be stolen. Your data can be held hostage. Read this article about two-step authentication. Learn about it. First thing, set it up for your Google account. The good news is that you are probably using it already for banking and other financial accounts, because the banks are making you do it. Just do it.