I wanted to post about Google’s new two-factor authentication announcement. Two-factor authentication is something you have (e.g. a phone) and something you know (e.g. a password). It’s a Big Deal because if your account or business has two-factor authentication, those accounts are immediately less likely to be phished, hijacked, or otherwise abused. There’s a neat Google Authenticator application that runs on Android, iPhone, and Blackberry: For the “something you have,” Google provides lots of ways to authenticate: – SMS, e.g. for cell phones – a voice phone call, e.g. for landline phones – authentication apps, e.g. for smartphones that might be abroad or not have a signal. Android, iPhone, and Blackberry phones are supported. – one-time/single-use codes that you can print out as a final fallback and put in your wallet, desk or a safety deposit box. This announcement has a few bonus features. Here are some extra-good things that make me happy: – Two-factor authentication will be offered on all Gmail accounts “in the next few months,” according to TechCrunch. – You can authenticate a particular browser using cookies for 30 days per browser . So you don’t get bugged with a login message on a computer you use every day, like your home computer. – Google open-sourced the Android authentication app and according to that page will open-source the iPhone app soon. – Drew Hintz mentioned in the TechCrunch comments that the Google Authenticator app uses RFC 4226, so a lot of this work is open stuff that people could take and build on. Drew also does a great job debunking misconceptions in the TechCrunch comments: “Random commenter: Google wants my phone number? (insert too-much-data-conspiracy here)” “Drew: Actually, you can use the app if you prefer not to provide a phone number” Overall, this is a great launch. I’ve seen the pain that a hijacked account can cause , over and over and over again. Don’t just protect yourself with a password. As soon as you can, add an extra layer of protection with two-factor authentication on your account. Two-factor authentication: it’s not just for World of Warcraft any more.
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Recapping Google’s new two-factor authentication