system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] Does the Cerebro operate both ways, as in if you're being mind intruded by Prof X, for the sake of arguement, could a telepath of power level Prof X + 1, via Prof X using Cerebro turn the tables and control Cerebro remotely via the Prof X initiated connection?

Whilst we've seen other telepaths simply block out Prof X's mind reading/control, could one (of higher power), sense his connection and then start controlling Prof X, and then start controlling Cerebro and make Prof X destroy the world or something remotely?
gpt
Cerebro is simply an amplifier of psychic ability. It does not confer any special ability on behalf of the user or allow anything to happen on a a large scale that the original psychic couldn't do on a smaller scale.

So the scenario is Professor X is telepathically intruding into someone's mind with the assistance of Cerebro, he is using his own power, amplified. The Shadow King comes along and senses the connection, could he then take over Professor X's mind via the connection? 

Well, would the Shadow King have been able to do it anyways? Then yes. If not? then no. It's not like there's an artificial circuit made that one can hack into and use. If Charles is telepathing to someone 2000 miles away and the Farouk comes by that person, Xavier's actual mind  is still 2000 miles away in a shielded room underneath an armored building surrounded by the world's best trained mutants, and that's what one has to get through to do anything to him.

Now if the Shadow King is sensitive enough, he can recognize Xavier's telepathy and track it to the source, then and perhaps attack his mind from within range, but pretty much any mutant psychic on the planet knows about Cerebro and where it is, so it's not like that would be tough to do if one was sufficiently motivated.

But no. Using Cerebro doesn't create a new way of attacking Xavier's mind or make him any more or less vulnerable than he was before.