1. 1
Arab Academy for Science &Technology & Maritime Transport
College of Computing and Information Technology
Computer Science Department

2. 2
• There
are
a
number
of
security
concerns
related
to
computers
that
users
should
be
aware
of,
including:
• Having
a
PC
stolen
• Losing
important
data
• Losing
contact
lists
• Pirated
or
counterfeited
products

3. 3

4. 4
• Hardware
damage:
Can
be
accidental
or
inten>onal
• System
failure:
The
complete
malfunc>on
of
a
computer
system
• Can
be
due
to
a
hardware
problem,
so?ware
problem,
or
computer
virus
• Can
be
due
to
a
natural
disaster
or
planned
a@ack

5. 5
• Use
door
and
computer
equipment
locks
• Cable
locks
• Security
slots

6. 6
• Use
encryp7on
to
protect
data
• Increasingly
used
with
USB
flash
drives,
notebook
PCs,
hard
drives,
etc.
• Full
disk
encryp>on
(FDE):
Everything
on
storage
medium
is
encrypted
• Self-­‐encryp>ng
hard
drive:
A
hard
drive
using
FDE

7. 7
• Computer
tracking
so;ware:
Used
to
find
a
PC
a?er
it
is
lost
or
stolen
• Sends
out
iden>fying
data
via
the
Internet
• Law
enforcement
can
use
this
data
to
recover
the
PC
• Most
o?en
used
with
PCs
but
also
available
for
other
devices
• Kill
switch:
So?ware
used
to
destroy
sensi>ve
data
on
a
stolen
or
lost
PC
• Other
precau>ons:
• Alarm
so;ware,
tamper
evident
labels,
etc.
• Common
sense

8. 8
• Proper
hardware
care:
Needed
to
prevent
damage
• Ruggedized
PCs:
Designed
for
more
abuse
than
conven>onal
hardware

9. 9
• Surge
suppressor:
Protects
hardware
from
damage
due
to
electrical
fluctua>ons
• Uninterrup7ble
power
supply
(UPS):
Provides
con>nuous
power
to
a
computer
system
for
a
period
of
>me
a?er
the
power
goes
off

10. 10
• Also:
• Watch
dust,
moisture,
sta7c,
heat,
etc.
• Avoid
head
crash
• Stop
USB
devices
before
removing
• Use
screen
protectors,
jewel
cases,
etc.

11. 11
• Backup
and
disaster
recovery
plans:
• Both
businesses
and
individuals
should
use
appropriate
backup
procedures
• Con>nuous
data
protec>on
(CDP):
Enables
data
backups
to
be
made
on
a
con>nual
basis
• Backup
media
needs
to
be
secured
• Data
storage
companies
store
backup
media
at
secure
remote
loca>ons
• Online
backup
is
another
possibility
• Disaster-­‐recovery
plan:
Spells
out
what
an
organiza>on
will
do
to
prepare
for
and
recover
from
a
disrup>ve
event
• Hot
sites

12. 12
• So;ware
piracy:
Unauthorized
copying
of
a
computer
program
• Widespread,
global
problem
• Occurs
when:
• Individuals
make
illegal
copies
of
so?ware
to
give
to
friends
• Businesses
or
individuals
install
so?ware
on
more
than
the
number
of
computers
allowed
according
to
the
end-­‐user
license
agreement
(EULA)
• Sellers
install
unlicensed
copies
on
PCs
sold
to
consumers
• Large-­‐scale
opera>ons
in
which
programs
and
packaging
are
illegally
duplicated
and
sold
as
supposedly
legi>mate
products

13. 13
• Digital
counterfei7ng:
The
use
of
computers
to
make
illegal
copies
of
currency,
checks,
collec>bles,
and
other
items
• O?en
scanned
and
printed
or
color-­‐copied

14. 14

15. 15
• Protec7ng
against
digital
counterfei7ng
• New
currency
designs
• Microprin>ng,
watermarks,
security
thread,
etc.
• Special
paper
is
used
with
U.S.
currency
• Iden>fying
technology
included
in
digital
imaging
hardware
• Digital
watermarks:
Subtle
altera>on
to
a
digital
item
that
is
not
no>ceable
but
that
can
be
retrieved
to
iden>fy
the
owner
of
the
item
• Also
can
use:
• Holograms,
RFID
tags,
and
other
hard-­‐to-­‐reproduce
content

16. 16
• Privacy:
State
of
being
concealed
or
free
from
unauthorized
intrusion
• Informa7on
privacy:
Rights
of
individuals
and
companies
to
control
how
informa>on
about
them
is
collected
and
used
• Computers
add
addi7onal
privacy
challenges
• Many
data
breaches
recently
due
to
lost
or
stolen
hardware,
carelessness
with
documents
containing
sensi>ve
data,
database
breaches,
etc.
• Businesses
need
to
be
concerned
with
the
expense,
damage
to
reputa>on,
and
possible
lawsuits