Comment Computing magazine recently ran a major feature on security. In particular, it focused on internal as opposed to external threats, reflecting the fact that, according to the (former) National Hi-Tech Crime Unit, some 38 per cent of financial fraud in the UK is a result of internal security breaches.

The article(s) then went on to look at the prevention of unauthorised access to data. However, any casual reading of fraud reports in the news media will quickly reveal that a significant proportion of fraud (not to mention sabotage by disgruntled employees) is committed by authorised rather than unauthorised personnel. And if someone is authorised to read, write or update data, then how do you prevent, or at least detect (at the earliest possible stage) any unauthorised activity?

Read full story: Detecting mischievous activity