Literature survey on contemporary security breaches

Use the internet to research some of the different ransomware attacks that have occurred recently during COVID-19. Identify at least three recent attacks and write a summary of your research. In your summary report, you should include the following :-

1. What ransomware does and why it is so effective?
2. What is the potential impact of Ransomware during COVID-19?
3. What can users do protect themselves?
4. How can ransomware be removed from a computer?