Fifty-one percent of UK bosses are “unconcerned” with the security of their corporate networks, according to a report released by authentication provider, Swivel Secure.

A quarter of business owners admit to reusing the same username and password across all their corporate and personal accounts, from their Facebook page to their confidential corporate systems.

Part of the issue is that business owners do more online than ever before. Four out of five business owners now regularly use up to 50 web sites that require a username and password whereas just five years ago, the vast majority – 73% – accessed just 20 or less.

Doing more online with the same username and password greatly increases the chances of a fraudster, data thief, saboteur, or even a disgruntled employee, obtaining these details and exploiting them for criminal gain. More than two-thirds also admitted to keeping a written log, or using a system of their own devising, to help them keep track of the usernames and passwords they use regularly.

The survey was of 200 UK business owners and conducted by The Leadership Factor in December 2012.