A security researcher found that a Kromtech database full of sensitive data was accessible over the internet without any login required. Names, e-mail addresses, phone numbers, computer serial numbers, license codes, and, worst of all, usernames and very weakly hashed passwords. This is just the latest in many incidents involving MacKeeper, including accusations of fraud, a successful class-action lawsuit ruling against ZeoBIT, and even a case of malware being installed through a vulnerability.”]
Source: https://blog.malwarebytes.com/cybercrime/2015/12/massive-mackeeper-data-breach/