The Yorkshire Building Society (YBS) customers have claimed that they are taking necessary steps soon after a laptop containing unencrypted customer details were misplaced.

The laptop was reported to be stolen from YBS offices in Cheltenham, but was soon was found out in a span of 48 hours, as news agency Press Association claimed.

The forensic test has stated no classified information have been leaked, but many rumors claim that information might have been leaked.

The report claimed by UK Information Commission's Office (ICO) has claimed that the theft took place at Chelsea Building Society where the manager left the laptop on the desk.

Enforcement head at the ICO, Mick Gorill stated: "It is extremely concerning that an unencrypted laptop containing large amounts of personal data was left unsecured overnight, together with its passwords. Employees should only have access to information that is absolutely vital to work being carried out."

ICO has claimed that YBS breached the Data Protection Act but claims the building society has taken an immediate action in course of the event.