Is it possible for your opponent to hack into your game and make a move for you?

No.

Undecided. :D

IM Deviate-and Philidor-different opinions-who is right?

possibly...unless of course it can't be done

No it is impossible, unless perhaps it is. 

Of course, if somebody knew it was possible, then they probably wouldn't be admitting it...

I use my 1337 hax0r! skills to leave your queen enprise.

No.  But they can hack into your brain and force you to make a stupid move.

In theory yes, in practice, not likely. (Notice I did not say impossible)

Server errors are far more likely, if you are trying to say someone hacked the servers/ your computer to make a move for you.

Thanks for all the answers.

Whitepawn was very helpful

I've seen a mac hacked. That was a first.

Watch out for this one guy who makes bad moves on my account, his username is Jack_Daniels.

Hey, we all were helpful! (admit it).

Of course it is possible to hack your account. One only needs to log in with your username and then guess the password.

Tough going but possible.

If someone can somehow get your login information for a site, through keylogging or directly hacking your computer etc, they can basically do any online operation you can do on that site with your account. So, yes, it's possible to get your chess.com account hacked, broadly speaking. This is probably the case for every online site that asks for a login information.

However, there's nothing an opponent can do while just playing games with you on chess.com, through chess.com. I assumed that's what you meant, so I answered no.

LOL logicon, inventive I'll give you that much.  (You know what I mean)

Fixed that for you -- answer:  Yes.

Hi Kohai,

Not being a computer genius like you one has to what one has to do!

X

Thanks to Philidor and Prawn eats Prawn for their interesting observations.

I feel like I am doing a computer science degree!