Hidden scripts that use your computer's hardware to mine cryptocurrency, causing extreme lag and hardware degradation.

Hold down (on Windows) to permanently delete it without sending it to the Recycle Bin. On Mac, move it to the Trash and immediately empty it. 4. Run a Full System Scan

Software that locks and encrypts all your personal files (photos, documents, videos) and demands payment to get them back.

Open your antivirus software and run a (not a quick scan) to find and quarantine isolated threats.