In May of 2017, a malware program called WannaCry spread through computer networks across the globe. This program exploited a vulnerability in the Windows operating system, enabling hackers to encrypt the files of the organization. After the malware had taken hold in a system, users were sent a note demanding payment in the form of Bitcoins in exchange for the decryption key. This type of malware is known as...

		Scareware.
		Adware.
		Ransomware.
		Spyware.