Computer Security

Computer Security

1. Preventative

   • Access rights
     • Only allow users to access what is necessary for them
   • Firewall
     • To avoid hackers entering your system via your network
   • Physical Security
     • SADFLAB
       • Serial numbers (keep all serial numbers)
       • Alarms (such as burglar alarms)
       • Doors (ensure they are locked)
       • Fire protection (using CO2 or another gas because fire will be electrical)
       • Avoid putting computers on ground floor
       • Blinds (make sure they are closed)
   • Passwords
     • To avoid anyone entering the network without permission
   • Encryption
     • So any data stolen cannot be read without a decryption code
   • Acceptable use policies
     • So people know what the are allowed to do on the network

2. Corrective

   • Backup and restore procedures
     • So if data is lost, it can easily be restored
   • Redundant hardware
     • Have spare hardware so if something breaks it can easily be fixed or replaced
   • Disaster recovery procedures
     • Should a disaster occur and affect the network, then a procedure needs to be set in place for a quick recovery of the system

3. Detective

   • Virus checking software
     • Have software constantly checking for any viruses
   • Firewall software
     • To avoid hackers entering your system via your network
   • Fire alarms
     • So fires can be detected sooner
   • Audit trails
     • So administrators can trace what users have been up to