Who has your private info? Who knows, given how common <a href="http://www.pcworld.com/businesscenter/article/229301/are_you_a_data_breach_victim_heres_what_to_do.html">security breaches</a> have become. And credit card information is one of the most common types of <a href="http://www.pcworld.com/article/227255/protect_your_data_from_the_breach_epidemic.html">personal data</a> we volunteer online. So what can you do to minimize credit card fraud? Well, you can't stop the break-ins, but here are four ways to keep your funds out of the hands of the bad guys.