According to its own statements, the German energy service provider Ista has become the victim of an “external cyber attack”.
The website was no longer accessible.
"As an immediate measure and to prevent damage to our IT infrastructure, all potentially affected IT systems of the company were taken offline," says DataBreaches.net.
"As a result, you can temporarily only use certain functions and services to a limited extent or not at all.
We sincerely apologize for the inconvenience this may cause you and continue to ask for your patience while we try to resolve the issue."
Accordingly, Ista informed the state data protection authority and reported it to the police.
The company, which is represented in 22 countries and has its headquarters in Essen, specializes in heating bills, among other things.
Most recently, it employed almost 6,000 people and had sales of 933 million euros in 2020.