Via the internet, Brittany hacks into the computer control system of a local hospital that causes the hospital to be locked out of its computer databases, even though the data are stored on a remote cloud server. Brittany encrypts the data and then demands a ransom payment to return access. What is Brittany here, and what is this an example of$?$

a$.$

Brittany is a phisher, and this is an example of malware.

b$.$

Brittany is a prosecutor, and this is an example of cyber theft.

c$.$

Brittany is a computer expert, and this is an example of larceny.

d$.$

Brittany is a cyberterrorist, and this is an example of ransomware.