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:satellite: LECTURE 8 IT AUDITING :satellite: NETWORK &…
:satellite:
LECTURE 8 IT AUDITING
:satellite:
NETWORK & TELECOMMUNICATION
1. Network Component
a
Legacy computer system
Connected computers
b
Network
Telecommunication
d. OSI model 7 layers
Application
Presentation
Session
Transport
Network
Data Link
Physical
e
A local area network (LAN)
A wide area network (WAN)
f
An intranet
Extranet
Internet
VPN
g
Star topology
Ring/bas topology
2.Risk
Social engineering
Physical infrastructure
Programmed threats such as viruses and worms
Denial of service attacks (DOS)
holes in app and security software
c
Computers & terminals
Telecommunication channels
Routers & switching devices
Protocols
Software
3. Security & Internal Control
Hot fixes & service packs
User account & record policies
Security settings