At the RSA Conference in San Francisco last week

At the RSA Conference in San Francisco last week, I got the chance to sit down with Stephen Cobb, a distinguished security researcher for the IT security company ESET. We talked about a lot of things, including Android security issues and how walled gardens have their uses.It was a great conversation, touching on a wide variety of fascinating aspects of online and mobile security, and I wanted to share as many of them as possible.This list seemed like the best way to do that. And while not every one of the dirty-dozen points presented here may surprise you, I can pretty much guarantee that few people will already know – or agree with - everything on the list:1. Big Data is not new to the anti-virus industry. Turns out the anti-virus companies have been doing traffic analysis, incident sharing and code sharing for decades, Cobb claims. They just didn’t call it Big Data until the term become fashionable.2. Anti-virus companies have been practicing co-opetition since the 1980s, when they realized there was no percentage in one company being able to stop one virus while you needed another company to stop a different virus. They quietly began sharing virus signatures and other information, Cobb says.3. All the major Web browsers share information on malware sites and other threats. Chrome, Internet Explorer, Firefox and the others all share which URLs to flag, for example. That’s why when NBC.com was hacked recently and started spewing malware, everybody was able to block it almost immediately.