to commonly asked questions.

Did somesome install bad stuff on my computer?

Scotty, had some folks washing windows in my house and I now have " your browser has been blocked screen". Guess looking at bad stuff? $1000 to get it unblocked? "Policebadult" at bottom of page.. Alleges FBI etc. guess this is a scam. What do I do?

It is highly likely that the coinsedince that you hare having some work done at your home has nothing to do with your computer issue. They are most likely not related. This is totally %100 a scam. It may very well simply be an advertisement or browser window. I would suggest shutting down the computer and restarting. Then when opening your browser go to a page like or similar. If you HAVE in fact installed a malicious piece of software accidentally, I would be happy to remove it for you. Macs are not impervious to bad guys but we are a very hard target. And when I hear stories such as this one, it’s almost always because the user of the computer installed the program and granted permission to be installed with their password.
This image is a theme.plist hack