CompTIA A+ Certification All-in-One Exam Guide

physically!
NOTE Physical security for your systems extends beyond the confines of
the office as well. The very thing that makes laptops portable also makes
them tempting targets for thieves. One of the simplest ways to protect your
laptop is to use a simple cable lock. The idea is to loop the cable around a
solid object, such as a bed frame, and secure the lock to the small security
hole on the side of the laptop.
Malware
Networks are without a doubt the fastest and most efficient vehicles for
transferring computer viruses among systems. News reports focus attention
on the many malicious software attacks from the Internet, but a huge number
of such attacks still come from users who bring in programs on optical discs
and USB drives. The “Network Security” section of this chapter describes the
various methods of virus infection and other malware and what you need to
do to prevent such attacks from damaging your networked systems.
Environmental Threats
Your computer is surrounded by a host of dangers all just waiting to wreak
havoc: bad electricity from the power company, a host of chemicals stored
near your computer, dust, heat, cold, wet . . . it’s a jungle out there!
EXAM TIP Expect questions on environmental threats on the CompTIA
A+ 220-1002 exam.