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What is the most dangerous computer virus in the world?

There is no definitive answer to this question as it largely depends on individual circumstances. However, some of the most dangerous viruses in the world include the following:

1. Conficker

Conficker, also known as Downadup, is a particularly nasty worm that first appeared in 2008. It is estimated to have infected over 10 million computers worldwide, making it one of the most widespread viruses in history. The worm is particularly dangerous as it targets unpatched Microsoft Windows systems and can spread rapidly through networks. Once a system is infected, the worm can disable security features and allow remote access, making the system vulnerable to further attack.

2. Stuxnet

Stuxnet is a sophisticated piece of malware that was specifically designed to target industrial control systems. It is believed to have been developed by a team of specialists, possibly with nation-state backing, and was used in a targeted attack against Iran’s nuclear facilities in 2010. The worm is highly sophisticated and is believed to have caused significant damage to the Iranian nuclear program.

3. Cryptolocker

Cryptolocker is a type of ransomware that first appeared in 2013. It targets Microsoft Windows systems and encrypts files with a strong encryption key, making them effectively impossible to decrypt without the key. The virus then demands a ransom from the victim in order to decrypt the files. Cryptolocker has been particularly effective at spreading, with estimates suggesting that it has infected over 500,000 systems.

4. WannaCry

WannaCry is a ransomware worm that first appeared in May 2017. It targets Microsoft Windows systems and encrypts files, making them impossible to access without a decryption key. The worm then spreads to other systems on the same network, allowing it to quickly infect large numbers of computers. WannaCry was responsible for a major outbreak that affected over 200,000 systems in 150 countries.

5. Petya/NotPetya

Petya and NotPetya are ransomware viruses that first appeared in 2016 and 2017 respectively. Both viruses target Microsoft Windows systems and encrypt files, making them impossible to access without a decryption key. The viruses then demand a ransom from the victim in order to decrypt the files. Petya and NotPetya have been responsible for a number of high-profile infections, with NotPetya in particular causing widespread disruption when it infected over 10,000 systems in Ukraine in June 2017.

What is the most dangerous computer virus and why?

The most dangerous computer virus is the Conficker virus. This virus was first discovered in 2008, and it targets Windows operating systems. The virus gets onto a computer by being embedded in an email attachment or downloaded from an infected website. Once the virus is on a computer, it can disable security software, block access to security websites, and prevent the installation of security updates. It can also steal sensitive information like passwords and banking information. The virus has been known to spread quickly and cause a lot of damage to computers.

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