Here's 1 more to watch out for:
I have an old email address that I use for nothing any more. The last 2 days I've received several emails supposedly from Amazon saying I'd earned $50 from their rewards program. It's a very real looking notice but they come on that old address which I've never used at Amazon. They have a link to go get your rewards. Clicking on it is likely going to fry either your computer or your credit card. They have another link for amazon.com which is Amazon's real address but I'm betting that their link doesn't go there.
