A Dutch developer illegally accessed the accounts of over 20,000 users after he allegedly collected their login information via backdoors installed on websites he built. The hacker, yet to be named by Dutch authorities, was arrested on July 11, 2016, at a hotel in Zwolle, the Netherlands. Police say they received the first tips regarding the crook’s actions in November 2014, when a user complained about finding purchases someone else made on his behalf. The suspect is under investigation in over 140 cases already.
Source: https://www.bleepingcomputer.com/news/security/dutch-developer-added-backdoor-to-websites-he-built-phished-over-20-000-users/