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Are Bugs Like Shellshock and Heartbleed Really Serious, or Just Hype?

Dear Lifehacker,
So Shellshock is the newest vulnerability that may "break the internet." The last time they said that, it was about Heartbleed. Do I really need to be worried about all these bugs and vulnerabilities, or is this stuff tech companies need to care about? Can someone actually use these against me?

How Spammers Spoof Your Email Address (and How to Protect Yourself)

Most of us know spam when we see it, but seeing a strange email from a friend—or worse, from ourselves—in our inbox is pretty disconcerting. If you've seen an email that looks like it's from a friend, it doesn't mean they've been hacked. Spammers spoof those addresses all the time, and it's not hard to do. Here's how…