Unit 4 : Computer Security

Unit 4 : Computer Security

1. 1. Active and passive security

   • know how to use it
     • be careful using tools
   • know what security tools are available
     • know if we are protected
   • apply a set of basic security rules
     • guide our interction
   • active security
     • set of actions aimed at protectingnthe computer and its content
   • passive security
     • minimise the impact of possible computer damage

2. 2. Security on the computer

   • Threats to the computer
     • malicious software
     • signs that our computer has been attacked
       • slow connection
       • less available disk space
       • unknon programs appear
       • unkown icons appear
   • Types of malware
     • vius
       • program
     • keylogger
       • obtaining passwords
     • worm
       • flood the sistem memory
     • spyware
       • trojan
         • type of virus
       • adware
         • advertises included in programs
       • hijackers
         • programs that hijack other programs
   • more terminology
     • hackes
       • expert computer criminals
     • crackers
       • use them without a licence
     • cookies
       • text files
     • pharming
       • redirecting a domain
     • hoaxes
       • chain e-mails
     • spam or junk mai
       • advertise products
   • computer security
     • antivirus
       • program
     • firewall
       • controls and filters
     • proxy
       • software
     • password
       • protect the security
     • cryptography
       • encrypting of information

3. 3. Personal Safety

   • Threats to people or their identity
     • loss or harm
     • identity theft
     • unintended acces
     • cyberbulling
   • software for personal infomation
     • parental control
     • kids watch
     • K9 Web protection

4. 4. Digital Identity

   • digital certificate
     • a digital document that contains electronically validated personal identification data
     • can be used as a means of identifying signatory
   • electronic signature
     • a type of digital certificat that has the same validity as a written signature

5. 5. Ownership and disturbing of software and information

   • file exhange
     • 2P2 network
       • peer-to-peer netwoks
   • software licences
     • comercial software
       • propietary software
     • freeware
       • this is sotware with no monentary cost
     • free software
       • open source
     • copyleft
       • user licence that accompanies free software
     • GNU/GPL
       • general public licence
         • a company that accompanies packages