Greg feels comfortable that no one can open and read his e-mails. What does Greg have installed in his computer?
A) anti-virus software
B) spyware
C) encryption software
D) a Trojan horse
E) a worm

Question

Quizplus · Accepted Answer

C) The encryption system works by locking an e-mail message to a unique code number for each computer so only that computer, not others, can open and read the message.

Greg Feels Comfortable That No One Can Open and Read