Distributed Denial of Service is;

a.

Used to distract IT personnel and keeping them from immediately identifying a fraudulent transaction, to stop the wire transfer.

b.

Program presents itself as a useful computer program that stays hidden while downloading and installing a stronger threat such as a bot.

c.

Text messages or emails, rumors sent by email or posted on social networking sites, embarrassing pictures, videos, websites, or fake profile to hurt someone.

d.

A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes.