At the end of September 2016, it came to light that some models of surveillance cameras and room sensors had backdoors that allowed for espionage. In particular, this affected surveillance cameras used in data centres and server rooms. The backdoors apparently made it possible to access the image and video data of the cameras and copy this data to servers on the Internet. In this way, user and administration passwords may be compromised or device configurations, infrastructure details, and other confidential information may be made available to third parties, for example. This facilitates more comprehensive attacks by exploiting the habits of employees.