A prevalent tech support scam displays fake pop-up alerts like \u201cC0mput\u0435r ERR 930x884nj07B\u201d warning Windows and Mac users about serious malware threats that require immediate assistance. However, the alarming warnings are completely fabricated. Calling the supposed Microsoft and Apple security helplines in these pop-ups connects users directly to sophisticated overseas cybercriminal call centers instead. By socially engineering worried victims who contact them, these fraudulent support scammers can extort hundreds of dollars or steal sensitive personal information through threats of identity theft via non-existent malware infections. This guide explains how the \u201cC0mput\u0435r ERR 930x884nj07B\u201d scam works, what to do if you encounter one of these fake alerts, and how to best protect yourself moving forward.<\/p>