Phone Call from IRS
You get a phone call from someone who claims to be the Internal Revenue Service (IRS) and that you need to respond or a judgment will be issued against you.
The IRS NEVER calls you on the phone. HANG UP!
If IRS needs to communicate with you it will be by mail.
If you have a message on Phone Messages DO NOT call back!
Phone Call From Windows Service Center
You get a phone call from someone who claims to be the Windows Service Center (Usually foreign accent). They tell you that have noticed problems with your Windows computer in the last few days. They ask to connect to your computer.
HANG UP! Microsoft will NEVER call you to tell you that you have a problem with your computer. They are not monitoring it.