I believe I was hacked....

Check thru this site, it explains many of your concerns, use the search window to locate some of the answers to your questions, and what you can do about it.

Tons of excellent info here, check thru it.

http://www.thesafemac.com/?s=hacked&submit=Search

Hope this helps

Take it to an Apple Store, the AARP handed you a snowjob, and you bought it.

If the drive has been erased and reinstalled then it is no longer there, are you unconvinced that the drive was actually erased?

Your hacker needs physical access to your machine, don't let anyone else use your account and you are safe.

Don't allow anyone to login remotely

Change all of your passwords and make them strong.

Kitty122868,

I was away for awhile, sorry for the delay.

As Csound1 has suggested, change your passwords, and make them striong: upper and lower case, numerical, and include some symbols, 16+ characters. Do not use the same password(s) for multiple logins. Never share your logi password with anyone.

Also go to system preferences/sharing and turn off all sharing services and only use them when necessary especially any of the remote services.

Go to system preferences/security, general tab, and check the box "Require a password to unlock each System Preferences pane"

Keep others from having physical access to your machine. It is common for a "someone I know" scenario.

If it were to happen again, you can bring it to Apple, as they diagnose issues for free.

If it was "wiped and reinstalled it should be "clean" and changing your passwords to strong ones , as well as not allowing physical access as well as the afore mentioned steps, you should be OK.

Change all your important pswds, banking, shopping accts, etc...

All the Best

You're welcome.

Hi Kitty

I strongly doubt that you are being hacked, you can easily do a quick test. Use the machine without internet for a day, hacking would be difficult under those conditions.

Online (ie. Facebook) accounts becoming compromised is nothing to do with your Mac, the Guest user account is normal, it's present on all Macs when first setup. It can be disabled (users choice)

If you have a router (and I am sure that you do) then you are already protected by a firewall, adding a second doesn't do much.

You (and the Apple Store) can't trace the IP address, that is a job for the police.

Please describe exactly what is happening.

You can take it to Apple they may be able check the logs and possibly to a trace route, whois, Looup in network utilities.

This is beyond my knowledge, but most of these hacker types are pretty good at covering their tracks.

If they are able get an IP address, they may be able to find something. (If they will do that) I would think that local law enforcement would be your first step. Ask them what they think your options are (Ask Appple as well). I, fortunately have not had to deal with this, altough there are many who have, and I would think that this would be considered a cyber crime. I have always used my firewall, and never have any sharing preferences turned on. You will probably need to do the password changing proceedure again, and also check your important accounts for unusual behaviors.

STRONG passwords, make them alpha (upper/lower case), numeric, symbols, at this point change the format of your paswords as well (style that you create them, and make them nonsense.

I hope that you get this solved, good luck. Post back with your results.

Maybe Csound1 will have more info to offer

You are correct that the Police will do little at this time, and you have taken the correct action by changing your password for Facebook. Change all other online passwords as well, make them strong and make them different from each other.

Leaving the Mac firewall on will not do much either way really. You can leave it on. Contact Facebook support, maybe they can help with the inappropriate posts.