I have been having trouble with account and computer tampering on all levels. Today I discovered that the users & groups password can be changed at any time without unlocking. As a novice, I am missing something. Give me the instructions on how and where to look for implanted changes. How is this possible and how to fix it? -The guest login is OFF -I am the only person using the computer/passwords -The WiFi is off -There are always spoof and phishing pages for almost every place on the web -All accounts are stolen or tampered with; email, shops, websites, stores, WordPress, PayPal, etc -The computer has been wiped clean back to factory a few times -The hard drive has been changed -New computers have been bought -After changes, problems always occur when entering the Gmail address in the address bar &/or going to the Apple App Store. Without knowing much more, this may be where the culprit is getting in every time. Eventually, all email/documents are stolen. I also have concerns that Apple Apps are being downloaded or changed to cause problems when downloaded. If this is true then anytime I re-apply or open an app, I am getting contaminations. -There could be an alert attached to all my accounts, so that anytime I visit, I am immediately attacked. How to get rid of it.