Foolmewunz
Grammar Resistance Leader, TLA Dictator
Nah, the hackers will figure out it's the OED sooner rather than later.
Get a coding software (freeware ones are fine) and have a team prepare various coded messages that are then sent around by campaign staff, three messages per week per staffer should be unproblematic if the messages are prepared in advance. Make sure the codes are simple enough to guess (names of places and events) and the text contained therein meaningless and unobtrusive: Bible passages, grocery shopping lists, famous movie quotes, what appear to be username/password combinations and links to more or less random internet sites with logins. Forums are a good choice.
It should be enough to keep the hackers busy for a few weeks, which is all you need.
McHrozni
Oh, you want them to figure out it's the OED, then spend two months plucking out the select words and trying to make sense of them.