Mobile Devices and Wireless
What is a Mobile Device/Wireless?
o Mobile Device: a device that is easy to use, enables remote access to business networks and the
internet, and enables quick transfer of data.
o Wireless Communication: the transfer of information over a distance without the use of electrical
conductors or wires
What are some examples of Mobile Devices?
o Laptops
o Cell Phones
o PDAs
o Flash Drives
o Bluetooth
o Others:
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How does Wireless Work?
o Wireless networks use electromagnetic radiation as their means of transmitting data through space.
o An access point (AP) device is physically connected to the LAN (typically a router)
o The AP has an antenna and sends and receives data packets through space
o A wireless device then connects to the WLAN using its transmitter to connect to the AP, and then to
the LAN.
Growing Popularity of Mobile Devices:
o Used for day to day activities
o Affordable
o Necessary to keep up with competitors using the same technology
o Convenient Size
What are the Advantages?
o Enhanced productivity
o Portability: Stay connected even away from home or office, resulting in a more flexible work life
Risk: Physical theft/loss of device & Risk: Data loss/leakage
o Mitigation
o Cable Locks
o Never leave hardware unattended
o Make hardware as inconspicuous as possible
o Invest in tracking/recovery software
Wireless networks
o Infrastructure Mode
o Ad-hoc mode
Specific Threats to Wireless Networks
o Unauthorized use of service
o Jamming
o Constant Jamming
o Deceptive Jamming
o Mitigation
o Encryption
o Authentication
Common Sense Solutions
o Understand what is really at risk
o Take controls seriously
o Don’t be too trusting of people
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