My Yahoo PPC account was and they changed files, used over 300.00 from my paypal account in advertising, and don't know what all they did. Yahoo caught it, locked my account, changed the files back, and gave money back. Would really love to know who did it and what exactly they did though. This happened around the 6th to about the 11th of Aug when I had broke my wrist and had surgery and not been on my computer during that time. Seemed as if they almost knew I wouldn't be on my computer to catch it??