Security firm Cygilant apologizes after social media meltdown

There's an old adage that seemed appropriate this morning: "Talk s**t, get bit."

That's exactly what happened to Boston-based cybersecurity firm Cygilant, which went off the deep end last night on Twitter by mocking several security researchers, calling one of them a "wannabe" professional, among other things.

It was a painful lesson in how not to do social media. Here's how it went down.