What is the most dangerous PC virus that is currently active?

The most dangerous PC virus that is currently active is WannaCry. This virus has caused havoc around the world, affecting hospitals, businesses, and individuals. WannaCry encrypts files on a victim’s computer and demands a ransom be paid in order to decrypt the files. This virus has caused millions of dollars in damage and has even resulted in death in some cases. WannaCry is a serious threat and should be taken seriously.

What are the top 10 most dangerous computer viruses of all time?

While there are no definitive top 10 lists of dangerous viruses, there are a few that stand out as being particularly destructive or notable. Here are 10 of the most dangerous computer viruses of all time:

1. ILOVEYOU

This virus appeared in 2000 and quickly spread around the world, causing an estimated $5.5 billion in damage. ILOVEYOU infected over 50 million computers and caused businesses and government organizations to shut down.

2. Melissa

Named after a topless dancer in Florida, Melissa was one of the first mass-mailing viruses. It infected Microsoft Word documents and caused them to be sent to the first 50 people in the victim’s address book. Melissa caused over $80 million in damage.

3. Code Red

Code Red was a worm that exploited a security flaw in Microsoft’s IIS web server software. It caused widespread damage, defacing over 359,000 websites with the message “Hacked by Chinese!”. Code Red was responsible for an estimated $2 billion in damage.

4. Nimda

Nimda appeared just one day after the 9/11 attacks in 2001 and is believed to be one of the fastest-spreading viruses of all time. It spread via email, Usenet postings, and by infecting web servers. Nimda caused an estimated $815 million in damage.

5. Slammer

Slammer was a fast-spreading worm that exploited a vulnerability in Microsoft SQL Server. It caused widespread outages, affecting banking, telephone, and other critical infrastructure. Slammer caused an estimated $1 billion in damage.

6. Mydoom

Mydoom was a virus that spread via email attachments and infected computers with a backdoor, allowing attackers to take control of the infected machines. It was responsible for the greatest amount of email spam ever, and caused an estimated $38 billion in damage.

7. SoBig

SoBig was a worm that spread via email attachments and infected computers with a backdoor, allowing attackers to take control of the infected machines. It was responsible for the greatest amount of email spam ever, and caused an estimated $37.1 billion in damage.

8. Conficker

Conficker is a worm that spread rapidly around the world, infecting over 10 million computers. It caused widespread damage, including disabling access to some government websites. The estimated damage caused by Conficker is $9.1 billion.

9. Sasser

Sasser is a worm that exploits a vulnerability in the Windows operating system. It caused widespread outages and disruptions, particularly to airports and hospitals. Sasser caused an estimated $18.8 billion in damage.

10. WannaCry

WannaCry is a ransomware worm that spread rapidly around the world, infecting over 200,000 computers in 150 countries. It caused widespread damage, particularly to the UK’s National Health Service. The estimated damage caused by WannaCry is $4 billion.

Visit malwarezero.org to learn more about most dangerous pc viruses. Disclaimer: We used this website as a reference for this blog post.