Internet Privacy, Security, and Social Issues

1. Privacy and security
online; social issues
for a social network
CIT101I: Using the Internet
April 18, 2012

2. Wireless LAN
 Uses a wireless
medium — such as
radio frequency
transmissions — to
connect computers,
printers, and other
devices
 RF is most common
for WiFi hotspots
 IR or Bluetooth for
short2 range devices

3. Networking Basics
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4. Location-Based Services
and GPS
 Handheld wireless
devices, such as
smartphones and
tablets, are ubiquitous
in today’s modern
mobile societies
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5. Location-Based Services
and GPS
 Location-based services (LBS) are
wireless services offered to customers
based on their physical location
 E9-1-1
 At the heart of this and other LBSs are
the global positioning system
(GPS) satellite network and receivers
mounted in automobiles or placed in
cell phones or other handheld devices
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Internet Technologies and
Security

6. Location-Based Services
and GPS
 Geosocial
networking is a term
used to describe the
combination of LBS
with social networking
providers
 Foursquare
 Yelp
 Google Latitude
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Internet Technologies and
Security

7. Internet Telephony and Web
Conferencing
 Internet telephony
 Voice over IP (VoIP)
 Uses TCP/IP and packet switching to send voice
transmissions over private or public IP network
• E-businesses, such as Vonage, offer digital telephony
services
• Computer to computer calling using special software,
such as Skype
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8. Internet Telephony and Web
Conferencing
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9. Security/privacy
 Security: how safe is our data and equipment?
 Privacy: how safe is my information?
 Passwords (biometrics?)
 Firewalls
 Viruses
 Data encryption
 Spam and spyware
 Cookies
 Browser history and cache
 Cyberstalking
 Cyberbullying
 Questions to ask about sharing information online:
 Who, what, when, where, why, and how?

10. Network Security Issues and
Technologies
 Internal threats
 Security policies and
procedures
 Authorized network
access
 Wireless network
security
 Data backup and
restore
 Disaster recovery
planning
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11. Network Security Issues and
Technologies
 External threats
 Unauthorized network
access
 Computer viruses
 Web page hacking
 Firewalls and proxy
servers
 Internet filtering
software
 Security audits
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12. Network Security Issues and
Technologies
 Transactional
risks
 Protecting
and
validating
online
transaction
information
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13. Virtual Private Networks
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14. The digital divide
 Nearly 1 in 5 American adults does not use the Internet
(78% do, plus 95% of teens)
 Least likely users (% who use Internet):
 Adults over 65 – 41%
 <$30,000 household income – 62%
 No HS diploma – 43%
 62% have broadband, 3% dial-up, lots of mobile use
(88% have cell phones)
 65% of Internet users use social networks (50% of adults)
 What can’t you do without the Internet? (48% of non-
users say it’s not relevant to their lives)
 Pew Internet and American Life Survey in 2012

15. Copyright & file sharing
 Print, e-books, MP3 audio, video
 Protecting copyright of digital items
 Easier digitization of existing items
 Easier sharing of illegal copies (file sharing, etc.)
 Lack of legislative guidance (old law)
 DRM – Digital Rights Management
 Limiting copying and printing
 Breaks fair use exemptions?
 Stopping file sharing networks