Dear Somenath Chakraborty,

See some answers below:

https://www.sailpoint.com/identity-library/six-cybersecurity-risks-and-how-to-prepare/?gclid=CjwKCAiAh_GNBhAHEiwAjOh3ZEWASRE2KJAOSfWbWtqdmMccMg-LYzE6OCtiOoTYzd8NvdsjOwdO_BoCpwIQAvD_BwE

Rogue security software is a form of malicious software and internet fraud that misleads users into believing there is a virus on their computer and aims to convince them to pay for a fake malware removal tool that actually installs malware on their computer.

Thank you Len Leonid Mizrah for your valuable answer.

Somenath Chakraborty If you've ever studied famous battles in history, you'll know that no two are exactly alike. Still, there are similar strategies and tactics often used in battle because they are time-proven to be effective.

Similarly, when a criminal is trying to hack an organization, they won't re-invent the wheel unless they absolutely have to: They'll draw upon common types of hacking techniques that are known to be highly effective, such as malware, phishing, or cross-site scripting (XSS). Whether you're trying to make sense of the latest data breach headline in the news or analyzing an incident in your own organization, it helps to understand the different attack vectors a malicious actor might try to cause harm. Here’s an overview of some of the most common types of attacks seen today.

https://www.cloudflare.com/learning/ddos/what-is-a-ddos-attack/

Thank you Md Turab Hossain for your valuable answer to the question.

Rogue software attack is basically a scareware. It makes a user think that there's malware in his/her machine with the conviction to provide a malware removal tool after the payment of some stipulated amount. This malware removal tool actually installs malware on the victim's machine. Rogue software attack can also be classified as ransomware.

Others are not scareware or ransomware.

Thank you everyone for their valuable responses.