How does a computer get a virus?
There are many ways for a computer to get a virus. One way is for a person to accidentally click on a malicious link in an email or on a website. Once the malicious software, or malware, is installed on the computer, it can quickly spread to other parts of the system and wreak havoc.
Another way viruses can spread is through so-called “drive-by downloads.” This happens when a person visits a website that has been infected with malware. The malicious code can then automatically download and install itself on the person’s computer without their knowledge.
In some cases, viruses can also spread through portable storage devices like USB flash drives. If someone plugs a infected USB drive into their computer, the virus can copy itself onto the computer’s hard drive and start causing problems.
One of the most dangerous types of viruses is known as a “Trojan horse.” This type of virus masquerades as a legitimate program or file, tricking people into downloading and installing it. Once it’s on the computer, the Trojan horse can give hackers remote access to the system, allowing them to steal sensitive information or wreak havoc.
Fortunately, there are some simple steps you can take to protect your computer from viruses. First, make sure you have a good antivirus program installed and running. Antivirus software can detect and remove many types of malware, but it’s important to keep the program up-to-date with the latest virus definitions.
You should also be careful about the emails you open and the websites you visit. Don’t click on any links or attachments in emails unless you’re absolutely sure they’re safe. And be careful about the websites you visit—stick to reputable sites that you trust.
If you take these precautions, you’ll help protect your computer from viruses and other malware.
What are the most common pc viruses?
The most common pc viruses include the following:
1. The Love Bug
This virus was first seen in 2000 and spread via email attachments. It caused massive amounts of damage, with estimates of $10 billion in damages worldwide.
2. The Blaster Worm
This virus emerged in 2003 and also spread via email attachments. It was notable for its ability to spread quickly, and caused significant damage, with estimates of $2 billion in damages worldwide.
3. The Sasser Worm
This virus was seen in 2004 and exploited a vulnerability in the Windows operating system. It caused significant damage, with estimates of $1 billion in damages worldwide.
4. The Mydoom Worm
This virus was seen in 2004 and also exploited a vulnerability in the Windows operating system. It was notable for its ability to spread quickly, and caused significant damage, with estimates of $2 billion in damages worldwide.
5. The Conficker Worm
This virus was seen in 2008 and exploited a vulnerability in the Windows operating system. It caused significant damage, with estimates of $3 billion in damages worldwide.
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