A computer or software virus is a type of malicious software programme designed to infect and spread to other computer systems. Below is a brief overview:
1. **Creation:** Viruses are created by malicious individuals with the intent to harm or exploit computer systems. They typically write the virus code to exploit vulnerabilities in software or trick users into running infected files.
2. **Functionality:** Once a virus infects a computer, it can perform various harmful actions, such as corrupting or deleting files, stealing sensitive data, or using the infected computer to launch attacks on other systems. Viruses can also replicate themselves to spread to other computers.
3. **Working:** Viruses often attach themselves to legitimate programme or documents. When a user runs the infected programme or opens the infected document, the virus code executes, allowing it to carry out its intended actions.
4. **Avoidance and Curtailment:**
– **Use Antivirus Software:** Install reputable antivirus software to detect and remove viruses.
– **Keep Software Updated:** Regularly update your operating system and applications to patch known vulnerabilities.
– **Be Cautious:** Avoid opening email attachments or downloading files from untrusted sources.
– **Backup Data:** Regularly back up your important data to prevent data loss.
– **Use a Firewall:** Employ a firewall to block incoming malicious network traffic.
– **Education:** Educate yourself and others about safe online practices to avoid falling for social engineering tactics.
5. **Recent Trends:**
– The landscape of malware is constantly evolving. Malware authors continue to develop new techniques to evade detection and spread their creations.
– Ransomware attacks, where malware encrypts the victim’s data and demands a ransom for decryption, have been a prominent trend in recent years.
– Additionally, supply chain attacks, where attackers compromise trusted software or hardware vendors to distribute malware, have gained attention.
– As technology evolves, so do the tactics and techniques used by cybercriminals, making cybersecurity an ongoing challenge.
To stay protected, it’s essential to stay informed about the latest cybersecurity threats and best practices, and to use up-to-date security software on your computer and network.