Hey, G+ users -- turn on 2-factor authentication for your Google accounts. Do it now.

Why?

Password-only authentication is Disco-era technology, little more sophisticated than the ancient Roman watchword. Underlying flaws in the architecture of the Internet combined with modern web technology makes every web page and banner ad a potential spy, waiting to steal your password.

2-factor improves on this sorry state of affairs by requiring another piece of information to log in -- a one-time-use code that is sent to your mobile phone. So unless an attacker has both your password and your mobile phone it will be much harder for them to access your account. Yes, it's a little less convenient. But it's much more secure. And it sure beats having some stranger using your account to scam money from your friends.

Here ends the PSA. Do it and you'll thank me later.
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