My question is: What does "Unauthorised" mean? The legislation claims that it means not having "Consent" to access the system - does this refer to implicit or explicit? For example, would sending a username and password be considered consent, or would a contract be required? This is more focussed around web development and that kind of thing.
Moreover, if this were the case, would the absence of evidence of a password being sent be detrimental to a defence? Or would other evidence likely suffice, for example directions from the system's owner about how a developer should develop a certain script, or maybe a watermark on a website?
To conclude - what I'm really asking is how broad is the definition of "Authorisation", and how difficult is it to prove (or prove a lack of) authorisation?