OBJECTIVES
What are security concerns (examples)?
What are two types of threats (client/server)
Virus – Computer Enemy #1 threat
How to prevent and protect?
SECURITY CONCERNS:
examples
Uncover confidentiality (bank account)
Leak Authentication and Access Control (user name, password of your Web, email)
Conduct ID theft (over 50% is credit card fraud)
Hack or Intrude Web sites
Happens to client computers examples
Deliberate Corruption of Files (e.g., rename files)
Delete Stored Information
Use Virus (bring down system)
SERVER SECURIY THREATS
Web server with active ports (e.g., 80, 8080) can be misused (scalability or deny of service attack)
Web server directories (folders) can be accessed and corrupted
Server Threats:
DENIAL OF SERVICE
Hackers …
Break into less-secured computers
Installs stealth program which duplicates itself (congest network traffic)
Target network from a remote location (RPC) and activates the planted program
Victim’s network is overwhelmed and other users are denied access to Web and Email
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