Top Dangerous Computer Viruses and How to Protect Against Them

Overview of Major Threats to Your Computer

Since the advent of computers, malicious viruses have constantly evolved, posing significant risks. While many believe viruses spread mainly through the Internet, older networks also experienced their impact. As technology advanced, so did the capacity of viruses to cause extensive harm, especially targeting financial institutions, airline systems, and emergency services. The most dangerous viruses are characterized by their ability to rapidly propagate and inflict severe damage.

Here are three of the most infamous viruses in history:

Melissa
Emerging in the late 1990s, the Melissa virus exploited Windows dominance, targeting Word and Outlook. It spread via email macros, infecting users who opened malicious attachments, flooding inboxes with dozens of copies, and crippling corporate networks of that era.

Conficker
First detected in 2008, Conficker is known for its resilience. It exploits Windows vulnerabilities to create a vast botnet, disabling security features and deleting backup points. It spreads through shared folders and removable media, infecting millions of computers worldwide.

WannaCry
This ransomware appeared in 2017, encrypting files and demanding Bitcoin ransoms. It exploited a Windows flaw, affecting global institutions including healthcare providers and corporations. Regular updates and security measures are essential to prevent infection.

Protect your device by updating your system regularly, installing reliable antivirus software, using complex passwords, disabling AutoRun, and safeguarding shared folders. Staying vigilant is vital to prevent virus damages.