According to Kromtech, this was the result of a 'server misconfiguration' and the error was 'fixed within hours of the discovery'. In December 2015 security researcher Chris Vickery discovered a publicly accessible database of 21GB of MacKeeper user data on the internet, exposing the usernames, passwords and other information of over 13 million MacKeeper users. Kromtech was closely affiliated with Zeobit in Ukraine and hired many former Kyiv-based Zeobit employees. In April 2013, Zeobit sold MacKeeper to Kromtech Alliance Corp. In July 2018, MacKeeper 4.0 was released. MacKeeper 3.0 was released in June 2014 as software as a service with a new 'human expert' feature and optimization with OS X Yosemite. Kromtech Alliance acquired MacKeeper from Zeobit in April 2013. MacKeeper 2.0 was released on 30 January 2012 at Macworld – iWorld with an expanded number of utilities related to security, data control, cleaning and optimization. MacKeeper 1.0 was released on October 26, 2010. The first beta version, MacKeeper 0.8, was released on. MacKeeper was initially developed in 2009 by Ukrainian programmers in Zeobit.

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