Seems like there’s a major security flaw in previous versions of Adobe Reader.
Writing about the flaw Symantec security researcher Hon Lau said: “The ease [with] which this weakness can be exploited is breathtaking.”
I’ve always thought Adobe Reader is a piece of rubbish, and moved to FoxIt Reader a while ago, though it didn’t support fillable forms. But with the release of FoxIt reader 2.0 which now has this feature, there’s no reason to even install Adobe Reader.
Once you’ve used FoxIt, you won’t be able to go back. It’s a small 1.5mb download, and doesn’t even need to be installed.