Forms of System Attacks
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As security administrator, you must monitor the system on a regular basis for possible security breaches. Following are the most common forms of system attacks:
Hunting for access lines
Hunting for passwords
Attempting a break-in
Changing or creating user authorization file (UAF) records
Granting/stealing extra privileges
Introducing apparently innocent software (Trojan horse software) that is intended to steal user passwords or do other damage to the system
Introducing viruses in command procedures and programs to gain access to privileged accounts
Scavenging disks
Using a node as a gateway to other nodes