The security of business IT systems has never been so important. Businesses rely more and more on IT to underpin their activities, and this makes them increasingly vulnerable to threats from hackers, viruses and even their own staff.

Having the correct information at the right time can make the difference between success and failure for your business. Effective security can help you control and secure information from malicious changes and deletions, or from unauthorised disclosure.

This guide provides a general introduction to IT security, highlighting the potential threats to a business, the requirement to put an effective security policy in place, and the need to consider business continuity as an essential component of this policy.