What is malware?

It is software that is used to disrupt a user’s computer operating system. It steals information and spies on computer users for an extended period of time and sometimes redirects their browser traffic to malicious websites. Malware can be embedded in harmless programs or downloaded covertly from websites. Anti-virus, anti-malware, and firewalls are used to protect against activity identified as malicious.

For more information please visit:

https://en.wikipedia.org/wiki/Malware

https://ist.mit.edu/security/malware