The Blocked by US Government Authority Tech Support Scam Popup is a web browser advertisement shown by scammy remote tech support companies that try to scare visitors into thinking that they are ...

The This PC Has Been Blocked screen locker is a Trojan that displays a fake security screen stating that the PC has been blocked because unusual activity was detected. It then tells you to contact the ...

At times, you may download a file from the Internet or receive one by email. Windows classifies certain files as unsafe downloads and attachments by identifying the files type and the security ...

Businesses sometimes block Internet access to prevent employees from visiting certain sites or from using the Internet at all. Access may be limited to just network resources or a single web portal to ...