Over the past few years there have been breaches to secure databases, some of which exposed half a billion users' data. It's easy and understandable to wonder if you are among that list, but how do you tell? The answer is really quite simple.
https://haveibeenpwned.com/
Just type in whatever email address you're worried about. haveibeenpwned is SSL secured (that's the little green lock next to the URL), and was created by Troy Hunt. Now, chances are modest that one email will be exposed, but often the data leaked isn't enough to steal an identity. Here are steps to take if you realize your data and passwords have been breached, and how to determine the severity of the leak.
Severity : If your physical address, email and email password, social security, credit card information, or banking details are available, that's about as bad as it gets. This enables pretty much whoever can access that data to manipulate it for identity theft. So, what to do in this situation? Not a whole lot, but you can work to inhibit further breaches.
To conclude, haveibeenpwned is a public service and an awesome website to determine if you have been the victim of a recent breach. Additionally, using common-sense practices to ensure the safety of your data is key to lessening the blow from those breaches. Those hacks were the result of weaknesses in those company's databases - loose passwords, email phishing, account linking, similar to how you can be exposed. Just remember, Thinking that it will never happen to you is the easiest way to end up frantically canceling your credit cards.
About Simplicity
Simplicity VoIP, based in Richmond, VA, provides hosted PBX, VoIP and business telephone solutions nationally to small, medium, and enterprise-level businesses for a comprehensive unified communications experience. Two distinct Class 5 geo-redundant VoIP platforms are offered in addition to fax-to-email, phones and equipment, and managed services. Named as Richmond’s 11th fastest growing company by Richmond BizSense, Simplicity VoIP’s key to success is its on-site service, installation and training supported 24/7/365 by a world-class client services team.