: If you haven't clicked it yet, delete it permanently (Shift + Delete).
: Once opened, these files typically do not play a video. Instead, they may install: Trojans : To give hackers remote access to your computer. Romantic Teen 1.mkv.mp4
: To flood your system with intrusive advertisements and pop-ups. How to Protect Yourself : If you haven't clicked it yet, delete
: To steal passwords, credit card info, or browser history. credit card info