The London law firm could face a fine of up to 500,000 pounds by the Information Commissioner over data breach.

The law firm has been accused of breaching with personal details of more than 8000 Sky broadband customers, 400 Plusnet customers and 500 Britons. The company is also accused of file sharing of its customers.

The details were unveiled in files on a website which belongs to the ACS: Law, a law company which has attracted the ire of a number of online forums because of its aggressive approach to people.

The website was the target of denial of service attack over the weekend which was the main reason of its collapse. When the site was brought back online all the hidden and unauthorized files became visible for normal users.

If the Information Commissioner finds this problem was happened because of the fault of the firm rather than a result of hacking then it would order a fine against it Experts said it was one of the worst data breach ever seen in the UK and the Information Commissioner should take strong legal action against the company.