Internet Security

1
Internet Security

• Jeff Mitchell
• Mark Mason
• Thomas Gormley

2
Internet

• Internet a web of different, intercommunicating
  networks funded by both commercial and government
  organizations.
• Connects networks in 40 different countries
• There are thousands of enterprise networks
  connected to the internet, and there are millions
  of users, with thousands joining each day.

3
Internet Security

• Along with the increase of users, came the
  increase of internet problems
• Internet problems that are most prevalent today
• Cyberterrorism
• Worms
• Password Security

4
Cyberterrorism

• Definition a criminal act perpetuated through
  computers resulting in violence, death and/or
  destruction, and creating terror for the purpose
  of coercing a government to change its policies.
• Came to greater attention after 9/11
• The U.S. government and organizations worry more
  about the protection of classified and personal
  information

5
Cyberterrorism

• Examples Knocking out e-mail
• Shutting down the internet
• Taking control of power grids, water and sewer
  systems, dams, hospital equipment, pipelines,
  communications, global positioning satellites,
  air traffic systems or any other networked system
  by use of a computer.

6
What is being done about Cyberterrorism?

• President Bush released his final cyber-security
  policy in February of 2003.
• Policy called for securing the governments
  cyberspace by authenticating and maintaining
  authorized users of federal systems and securing
  federal wireless local networks.
• Senator Joseph Liebermen proposes renewing
  moratorium on internet taxes, promote anti-spam
  legislation, and extend the research and
  development tax credit.

7
Cyberterrorism Continued

• U.S. National Computer Emergency response team
  will be arming the National Cyber Alert System.
• National Cyber Alert System it will take
  information from different public and private
  sources and issue warnings, bulletins, and how-to
  notifications.
• First nationally coordinated warning system for
  Internet threats and vulnerabilities

8
Hacking the System

• Underdeveloped system securities are continually
  being exploited by hackers.
• In late February 2003, a hacker was able to
  snatch over 59,000 SSNs of students.

9
Texas Techs SSN use

• TTU currently has an effective SSN masking system
  with the PTNs
• PTN Personal Test Number
• However, the PTNs are not advertised for use to
  faculty
• Estimated that only 20 of faculty use PTNs
  instead of SSNs for exams

10
CyberTerrorism vs. Hacking

• Both can be harmful and malicious
• Hacking is often used to displayed an individual
  prowess or display the faults within a system
• CyberTerrorism is a direct attack on systems to
  cause a break in physical securities or bring
  attention to a cause

11
Worms

• Definition a program or command file that uses a
  computer network as means for affecting a
  systems integrity, reliability, or availability.
• Network Worm can attack from one system to
  another by establishing a network connection.
• It is usually self-contained program that does
  not need to attach itself to a host file to
  invade network after network.

12
Worm Dangers

• Easily able to get on user computers through
  means such as instant messaging.
• Lightweight worms can download updated or
  specialized code from other servers.
• Many worms are subtle to the point that they are
  never caught until it is too late.
• Some worms once instigated, change their own code
  so detection is hard.

13
MyDoom

• Worm virus that became prevalent last week.
• Focused at Microsofts web site and is
  interfering with an infected public computers
  ability to access downloadable security-software
  updates.
• Sent in the form of e-mails. Once email is
  opened, the virus is released a creates a back
  door.
• This turns the infected computer into a main
  point of attack for network based attacks.

14
Worm Prevention

• Can prevent and detect worms by applying patches
  promptly
• Implementing sound perimeter security defenses
• Keeping virus definitions up-to-date
• Information sharing and analysis of networks
• Prearranged response capability
• Access to intelligence about the threat
• Accurate picture of your operational environment
  and defensive options

15
Password Security

• Passwords a secrete code assigned to a user.
• Two main problems Interlopers can easily guess
  them and users frequently forget them.
• Passwords Used for connecting to e-mail,
  checking bank accounts, certain web sites, school
  records, access to certain pieces of information,
  access to some chat sites, and many other uses.

16
Password Security

• Hackers are searching for personal information,
  governmental information, financial records,
  social security numbers, credit card numbers,
  business secretes, and the hack itself
• Solutions to preventing hacking biometrics- uses
  retinal scan or finger print or voice
  recognition, one-time passwords, evaluating use
  of private information in a public place,
  increasing the penalty for hacking, better
  encryption processes , and new password
  techniques

17
Conclusion

• Internet security is something to worry about but
  not have a heart attack about.
• Be careful of downloading, use of e-mails, and
  use of a computer in a wrong or illegal manner.
• The internet security problems that are faced
  today are just an introduction to the problems of
  the future.