What type of harmful program copies itself and spreads to other files, potentially causing damage?

The correct answer is a computer virus, which is a type of malicious software specifically designed to replicate itself and spread from one computer to another by attaching itself to various files. Once a computer virus infects a system, it can modify or corrupt files, disrupt device operations, and often lead to further security vulnerabilities. Viruses can be transmitted through various channels, including email attachments, downloads from compromised websites, and even through removable media like USB drives.

In contrast, the other options do not involve self-replicating malicious software. Cybersecurity encompasses practices and measures designed to protect computer systems from these threats, rather than being a type of harmful program itself. Blockchain is a secure digital ledger technology that records transactions but does not inherently relate to harmful software. Artificial intelligence involves simulating human intelligence processes by machines, particularly computer systems, and while it can be used in various applications, it is not designed to replicate or spread like a virus.

Understanding the distinct functions and characteristics of these terms is crucial in the field of empowerment technologies and cybersecurity.