Magic Forums

*Serious Question*
from my knowledge of ghosts and entities can attach themselves to the physical world and people. Can they (Spirits and entities) also manifest on the internet? I have searched for information on this matter and have found nothing. Has there been cases of people that died were active on their account after clearly passing? (Like a Redditor's account actively posting stuff six hours after death) If so, how easy is this for spirits and entities to accomplish? is it wide spread? In what capacity can they do this? Play games? break code? all answers and educated guesses are appreciated, thanks for reading!