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1. WannaCry ransomware attack

• It is the top virus that just silent since 2014 which help increase bitcoin to 10K$
• Now It came back in 2021 to attack all the computers in the enterprise by the victim has to pay the money for the decrypt key.
• It infects across the system
• If the victim did not give money to the hacker the price will increase
• It increases till the time that all the file in the computer is going to delete
• The payment they use is Bitcoin that help them to hide their identity
• It can enter into our computer by click on the scam link, crack software, scam email and etc…
• The bitcoin increase to 30K$ cause of the WannaCry also

2.DDOS ATTACK

• It is the top attack also because it makes many systems in the world have problem
• This Attack especially happens on Websites, Data Center, Sever, and etc…
• Many BOTNET that controls by the hacker goes into the system or server that made the traffic in it increase than regular so the performance cannot operate properly so it makes a server stuck
• The goal of these attacks is to annoy the enterprise and make them stuck some time our database will boom.

3. REvil Ransomeware Attack

• It is the new version of virus attack
• It is the same as WannaCry but if it infects it will ask for the money more than WannaCry
• And if we did not give money on time it will encrypt all the file and we cannot get them back
• It attacks all the systems that do not have antivirus protect