Virgin Media on Thursday reported a breach that allowed unauthorized access to the cable company’s database that contained personal information of about 900,000 customers.

Lutz Schüler, CEO of Virgin Media said: “We recently became aware that one of our marketing databases was incorrectly configured which allowed unauthorised access. We immediately solved the issue by shutting down access to this database, which contained some contact details of approximately 900,000 people, including fixed line customers representing approximately 15% of that customer base. Protecting our customers’ data is a top priority and we sincerely apologise."

The commpany said that the database did not include any passwords or financial details, such as credit card information or bank account numbers, but did contain limited contact information such as names, home and email addresses and phone numbers. Based upon investigation, Virgin Media believes that the database was accessed on at least one occasion but the compmpany does not know the extent of the access or if any information was actually used.

“We are now contacting those affected to inform them of what happened. We urge people to remain cautious before clicking on an unknown link or giving any details to an unverified or unknown party," the company said.