ELI5: Explain Like I'm 5

Computer security software

Computer security software is software that helps protect your computer from viruses, malware, and hackers. It does this by making sure that only safe and trustworthy programs can access the computer, and by scanning for and removing any dangerous programs that may have already made it onto the machine. It can also protect you from hackers by encrypting your data and hiding your computer from anyone who shouldn't be able to access it.