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A1 Telekom Austria hacked – user data stored in plain text

A1 Telekom Austria is a big deal in Austria. It offers mobile contracts, cable access, webhosting, and internet. As such, the internet service provider has of course a lot of user information in its different databases – which make it an interesting target for hackers. And hacked it was.

Data stored in plain text

According to a report from, a hacker has recently broken into the databases of A1 and stole data like Names, phone numbers, email addresses and passwords – and all of it was stored in plain text which is just brutal negligence. Only customers of their webspace area were affected.

While the data more or less stems from 2011 and from a service the company stopped offering back then, they are of course still customers who use it. It is still unclear as to how many users were affected since A1 is not sharing this information.

Hacker boasted on Twitter

Heise, who informed the company of the potential hack, found out about it on Twitter, where the hacker made fun of A1 because of their old systems and outdated security.

The internet service provider reacted fast: They were able to find and stop the leak in just a few hours. By now the vulnerable systems have been taken offline and affected customers are informed.

EMEA & APAC Content Manager @ Norton & Avira | Gamer. Geek. Tech addict.