The most common dangerous viruses
There are many types of viruses that can cause harm to humans, but some are more common than others. Here are four of the most dangerous viruses that you should be aware of:
1. Influenza
Influenza, or “the flu,” is a virus that infects the respiratory system, causing illness that can range from mild to severe. The flu is highly contagious, and can be spread through coughing, sneezing, or even just talking. Each year, the flu causes millions of illnesses, and kills thousands of people, particularly young children, the elderly, and those with weakened immune systems. Getting a flu vaccine is the best way to protect yourself from the virus.
2. Ebola
Ebola is a deadly virus that causes fever, vomiting, diarrhea, and intense bleeding. It is spread through contact with the bodily fluids of an infected person, and can be fatal in up to 90% of cases. There is currently no cure or prevention for Ebola, although scientists are working on developing a vaccine.
3. HIV
HIV, or human immunodeficiency virus, attacks the body’s immune system, making the person infected susceptible to other infections and illnesses, which can eventually lead to AIDS. HIV is spread through contact with the bodily fluids of an infected person, and can be prevented with the use of condoms or other barrier methods during sex. There is no cure for HIV, but there are treatments available that can slow the progression of the virus and allow people to live long, healthy lives.
4. SARS
SARS, or severe acute respiratory syndrome, is a viral respiratory illness that caused a global outbreak in 2003. The virus is spread through contact with the respiratory secretions of an infected person, and can cause severe pneumonia, making it difficult to breathe. SARS can be fatal, but most people recover with treatment. There is currently no vaccine for SARS, but scientists are working on developing one.Visit Site
10 most dangerous computer viruses in the world
Most dangerous computer viruses in the world
Cybersecurity is a top concern for companies and individuals alike – and for good reason. Countries and major corporations have been brought to their knees by sophisticated cyber attacks, while even the most vigilant home computer user can be taken in by a well-crafted phishing email.
As our lives move increasingly online, it’s more important than ever to be aware of the dangers that exist in cyberspace. Here are 10 of the most dangerous computer viruses in the world today.
1. WannaCry
WannaCry was one of the most destructive malware attacks in history, affecting over 200,000 computers in 150 countries. The ransomware encrypted users’ files and demanded a ransom of $300-$600 in Bitcoin in order to decrypt them.
While the attack caused widespread panic, fortunately a kill switch was discovered which prevented the malware from spreading any further. However, the damage had already been done, with WannaCry estimated to have caused billions of dollars in damage.
2. NotPetya
NotPetya shares many similarities with WannaCry, in that it is also a ransomware attack that encrypts users’ files and demands a ransom. However, NotPetya is far more sophisticated and destructive, with no known kill switch or way to decrypt the encrypted files.
NotPetya first emerged in Ukraine in June 2017 before quickly spreading around the world, affecting major companies such as Maersk, Merck, and FedEx. The attack is estimated to have caused damage in the billions of dollars, making it one of the most costly cyber attacks in history.
3. Stuxnet
Stuxnet is a computer worm that was first discovered in 2010. It is believed to have been created by the US and Israeli governments in order to sabotage Iran’s nuclear program.
While Stuxnet is not designed to spread indiscriminately, it is nonetheless extremely dangerous. The worm is able to spread via USB drives and network shares, and once it has infected a system it can cause major damage.
4. Zeus
Zeus is a type of malware known as a Trojan horse, which is designed to steal sensitive information such as banking details and passwords. Zeus first emerged in 2007 and has since been used in a number of high-profile attacks,including the theft of over $100 million from US banks.
5. Cryptolocker
Cryptolocker is a type of ransomware that emerged in 2013. It works by encrypting users’ files and demanding a ransom in order to decrypt them. Cryptolocker has caused millions of dollars in damage, with estimates suggesting that over 500,000 computers have been infected.
6. Operation Aurora
Operation Aurora was a cyber attack that was first discovered in 2009. The attack targets Google and other major tech companies, and is believed to be the work of the Chinese government.
Operation Aurora compromises users’ computers and then uses them to steal sensitive information such as intellectual property and account details. The attack is estimated to have cost Google and other companies millions of dollars in damages.
7. Shamoon
Shamoon is a computer virus that emerged in 2012. The virus targets computers running Microsoft Windows and is designed to destroy data. Shamoon is believed to be the work of a nation state, with initial attacks targeted at Saudi Arabian oil companies.
8. MySQL Remote Root Code Execution
The MySQL Remote Root Code Execution is a type of malware that was discovered in 2012. The malware targets servers running the MySQL database software, and is able to gain complete control of the server.
The MySQL Remote Root Code Execution is particularly dangerous as it can be used to launch further attacks, such as DDoS attacks or to distribute ransomware.
9. Conficker
Conficker is a type of computer worm that first emerged in 2008. The worm is able to spread itself via network shares and USB drives, and can infect both computers and devices running Microsoft Windows.
Conficker is designed to disable security features on an infected system, as well as to steal sensitive information. The worm is believed to have caused millions of dollars in damage, and is still active today.
10. Typhoon
Typhoon is a type of malware that was discovered in 2009. The malware targets industrial control systems, and is believed to be the work of a nation state. Typhoon is particularly dangerous as it can be used to take control of critical infrastructure, such as power plants and water treatment facilities.
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