1.6 system storage

1.6 system storage

1. Malware

   • Also known as 'malicious software'
   • Software can be malicious if damaging to a network or computer
   • Examples include viruses, worms and Trojan horses

2. Viruses

   • Malicious software designed to cause harm to a network of computer system
     • Attaches itself to programs or flies on a computer or server
       • Can affect all components of an operating system
       • Around 82,000 viruses are made a day

3. Worms

   • Replicates itself in order to spread to other computers
   • Often using a computer network
   • In order to achieve this, the worm exploits vulnerabilities across the computer network
     • Unlike a virus, it does not need to attach a program

4. Trojan horses

   • Malicious computer program
     • Designed to access a computer by misleading users off its intent
       • Example: email appearing to have been sent from a bank asking to download security software which would improve security where in fact the software intention is to give unauthorised access to the system

5. Social engineering

   • Relies on human interaction (social skills)
     • Method does not revolve around technical cracking techniques such as worms or viruses
   • Commonly involves users into breaking normal security procedures

6. Computer phishing

   • Form of social engineering
     • Designed to acquire sensitive information such as usernames, passwords, card details etc.
       • Most common phishing attacks occur via emails

7. Data interception and theft

   • Data travels in packets across networks