Question

Name two computer viruses that have caused tremendous damage to computer systems.

Answer 1

Melissa or Mailissa was a 1999 virus that spread as an email attachment. On opening the attachment, the virus replicated and sent itself to the first 50 mail contacts in the unsuspecting victim’s address book. The virus wiped out information on hard drives and created a major increase in email traffic at that time, forcing many companies to shut down their mail services until the virus was handled.

SQL Slammer or Sapphire was a 2003 web server virus that spread via the Internet. It attacked computer systems, mainly affecting banking and airline servers. It also caused outages to emergency 911 services in some cities.

Step-by-step explanation:

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Answer 2

1. The ILOVEYOU virus is considered one of the most virulent computer virus ever created and it’s not hard to see why. The virus managed to wreck havoc on computer systems all over the world, causing severe damage to computers.

2. ZUES Zeus is a Trojan horse made to infect Windows computers so that it will perform various criminal tasks. The most common of these tasks are usually man-in-the-browser keylogging and form grabbing. The majority of computers were infected either through drive-by downloads or phishing scams.