Personal data isn’t just about your name, phone number, credit cards and social security numbers. It’s also about your online habits. All that stuff is recorded, filed and analyzed by various companies, including your employers. That data can identify who you are and are as much a part of your digital identity as your user name and password. In fact, that data might be more accurate than your password. But whether a company is employing that kind of protection is a question that needs asking.