D2 - Protecting Data and Information

Question 1

Anti-Virus Software

Answer 1

𝐃𝐞𝐬𝐜𝐫𝐢𝐩𝐭𝐢𝐨𝐧
- Detects and removes
viruses and other malware
from a computer system.

𝐑𝐞𝐚𝐬𝐨𝐧 𝐟𝐨𝐫 𝐮𝐬𝐢𝐧𝐠
- Protects systems from all
forms of malware.

𝐍𝐞𝐞𝐝 𝐭𝐨 𝐛𝐞 𝐚𝐰𝐚𝐫𝐞 𝐨𝐟
- Must be regularly updated.
as new viruses are
created regularly.

Question 2

Firewalls

Answer 2

𝐃𝐞𝐬𝐜𝐫𝐢𝐩𝐭𝐢𝐨𝐧
- Monitor network traffic
into and out of an IT
system; block suspicious
traffic to prevent
unauthorised access.

𝐑𝐞𝐚𝐬𝐨𝐧 𝐟𝐨𝐫 𝐮𝐬𝐢𝐧𝐠
- Firewalls are key in preventing hacking attempts as well as worms

𝐍𝐞𝐞𝐝 𝐭𝐨 𝐛𝐞 𝐚𝐰𝐚𝐫𝐞 𝐨𝐟
- Firewalls are not 100% effective - security holes can be exploited

Question 3

Encryption

Answer 3

𝐃𝐞𝐬𝐜𝐫𝐢𝐩𝐭𝐢𝐨𝐧
- The conversion of data
into an unreadable code
known as ciphertext.

𝐑𝐞𝐚𝐬𝐨𝐧 𝐟𝐨𝐫 𝐮𝐬𝐢𝐧𝐠
- The most effective form
of security, as encrypted
data cannot be read
without the encryption key.

𝐍𝐞𝐞𝐝 𝐭𝐨 𝐛𝐞 𝐚𝐰𝐚𝐫𝐞 𝐨𝐟
- Encryption keys must
be maintained and kept
secure. A lost key means
the data is irretrievable.