Although we think our data is safe, we often give chunks of it away to third parties without the proper knowledge of how that information is stored and used. And we also don’t have a clue about the most important thing of all, how do companies keep our data safe. In most cases, it was discovered that our data isn’t as safe as we thought. Just look at Yahoo, and the company’s two massive data leaks; back in 2013 and, 2014 more than 1.5 billion user accounts were affected by all kinds of personal data being compromised. Users’ real names, passwords, email addresses, dates of birth, and telephone numbers were stolen, making the breach the biggest one in history.