A computer virus is a program which can replicate and attach itself to a program or files infecting the system without its knowledge. It is a type of malicious software that can infect and disrupt computer systems A computer virus can be spread from one host to another by sharing infected files or by downloading infected files from untrusted sources. All computer viruses are man-made, they spread only with human assistance and support. These viruses cause harm to files, applications, and the overall system performance.

Being aware of the risks associated with computer viruses is essential for maintaining the security and integrity of your digital environment.