By way of light relief, this recent article from Chessvibes is worth a read. Of course, there's a serious side to this: why cheat? You're only cheating yourself. Hopefully nothing like this would happen in sleepy Suffolk.
Of course, technology continues to advance apace, and perhaps some time soon we can expect a chess professional to experiment with a brain implant. This Chessbase article, from nearly ten years ago, explains one such idea.
Another article, from 'The Week' says (at the end):
"Maybe one day, the chip will help improve the thinking abilities of "healthy humans," ....meaning "prosthetically enabled intelligence augmentation" could become a reality.