deauthorize apple id
Hi,
I was recently at a friends place and authorized my apple ID on his computer. Now he's away, i.e. there is no way for me to get to the computer itself, is there anyway I can deauthorize my ID on his macbook? Is there anywhere I can centrally manage the computers I have authorized? If not, is there anything else I can to so that said person does not have access to my account in any way?
Thanks a lot!