Yes, OS X 10.9.2 is now available through Software Update/the App Store:
It's a 769 MB update (but may vary computer-to-computer, depending on your config).
Probably a good idea to do the upgrade from a safe and trusted network.
You can confirm the fix by going to
before and after you upgrade. (Safari will provide the most dramatic demonstration of this, whether
or not it is your usual browser.)
Hopefully that's all the drama for now.
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