System Security

System Security

1. Malware

   • Malicious software
     • viruses
       • self-replicating software within a program
     • worms
       • self-replicating
     • spyware
   • anti-malware software
     • Detects, prevents and removes malware.

2. Phishing

   • emails
     • Trick users into giving away personal information
       • Bank details
   • Educate people as to the signs of phishing
     • links in emails
     • requests for personal information
   • humans as the weak point
     • social engineering

3. Data interception and theft

   • encryption
     • scrambles data
       • unreadable when intercepted
   • data intercepted when being transferred to and from a server

4. Denial of service attacks

   • many computers requesting from one server
     • causes crashing
   • Make sure a back-up server is in place
     • increase bandwidth

5. Brute force attacks

   • trying many passwords to gain access
   • Secure passwords
     • capitals
     • numbers
     • symbols

6. SQL injection

   • inserting code
     • Using username and password
   • Validation code to prevent
     • account for password requirements
     • blank spaces

7. Network policies

   • rules and guidance on what users can and cannot do
     • regular backups
     • password changes
     • access levels
     • up-to-date security software
     • penetration testing

8. Network forensics

   • Monitoring traffic on a network
   • Copying and analysis of data packets
   • Helps to identify malware
   • Helps to determine where data is being sent

9. Penetration testing

   • testing systems for vulnerabilities
     • reveals weaknesses
   • Can help to stop threats.
   • acts like a hacker

10. Firewalls

    • prevents suspicious packets from entering
      • Hardware or software
    • Prevents malware from entering

11. User access levels

    • Different permissions given to different users
      • rely heavily on passwords
        • need to be secure
      • gives different access to different positions in a business