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Internet security for the home

Internet security for the home. Paul Norton MEng(Hons) AMIEE Electronic engineer working for Pascall Electronics Ltd. on the Isle of Wight A talk on Internet security from the viewpoint of the home user…. Profile of the Home internet user. Traditionally, home internet usage has tended to be:-

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Internet security for the home

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  1. Internet security for the home Paul Norton MEng(Hons) AMIEE Electronic engineer working for Pascall Electronics Ltd. on the Isle of Wight A talk on Internet security from the viewpoint of the home user…

  2. Profile of the Home internet user. Traditionally, home internet usage has tended to be:- • low bandwidth • Short DHCP lease time. • For email, web access, chat. Increasing trends: • Higher bandwidth. • Longer leases. • Filesharing applications, more complex chat programs etc.

  3. What do we mean by security? • Shop online safely. • Send and receive email safely. • Keep private files private. • Prevent damage to/tampering with our operating system and computer. • Motive.

  4. Threats • Viruses • Backdoor programs • Interception • Denial of Service (DoS) • Identity theft.

  5. Who? • Black hat / commercial attacker • Opportunist • Script kiddie.

  6. More about viruses • Some viruses exploit software flaws to run automatically. • Infection can come from a variety of sources • Damage.

  7. Backdoor programs / trojans • Program can do anything that a user sitting at the computer could do. • Demo. • DDOS.

  8. DDOS attack • Distributed denial of service attack • Picture.

  9. Methods of protection • Anti virus • Password discipline • Software firewalls • Hardware firewalls

  10. Passwords • Animated GIFs? • Password cracking statistics

  11. What does a firewall do? • A firewall attempts to filter traffic on the internet connection to allow only certain types of connections. • Software firewalls may operate on a ‘per application’ basis.

  12. More slides? • Firewall logs • Public/private key • Crypto in general

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