Ransomware and Virus Protection

You work as an information security specialist for a large financial company and your CISO has asked you to investigate recent ransomware attacks. The CISO wants to ensure that the company is well protected against these types of attacks.
Write a paper (3-4 pages) in which you answer the following:

Identify the common targets of ransomware. Explain why these targets are so attractive to hackers.
Using Google, search for a recent attack involving ransomware that has occurred within the last 3 months. Explain the type of business, how the attack was detected, and the outcome of the attack.
Propose what users and system administrators should do when a potential infection is suspected.
Compare and contrast viruses, worms, and Trojans. Indicate which of these you consider to be the greatest danger to computer users and/or the greatest challenge for security personnel to protect against.
Use the Internet to identify three commercially available antivirus software products for corporate use. Compare the features of each and describe which one you would recommend (and why).
Use at least four quality resources in this assignment. Note: Wikipedia and similar websites do not qualify as quality resources.