Malware, short for malicious software, refers to any software intentionally designed to cause damage to a computer, server, or network. It encompasses various types of harmful programs, including viruses, worms, and trojan horses, which can disrupt operations, steal sensitive information, or gain unauthorized access to systems. The impact of malware can be severe, leading to data breaches, financial loss, and compromised privacy. Organizations and individuals must employ robust security measures, such as antivirus software and regular updates, to protect against these threats and ensure the integrity of their digital environments.