Over at cryptome.org there's a page - British Military Intelligence Website Hijacked
Looks like the MOD forgot or didn't want to renew the DNS for intelligencecorps.co.uk!
As a result someone in the US (cryptome say that it's a former british agent, not sure where that info. comes from) has registered the domain, and will be getting e-mails sent by people using the Intelligence Corps part of the mod site... (as well as any other mail that may be sent to that domain!!)
DNS management.. It's important!