NETWORK SECURITY

The unauthorized discovery and mapping of systems, services, or vulnerabilities.

• Reconnaissance

• Access

• Denial of service

• Worms, viruses, and Trojan horses

The ability for an intruder to gain access to a device for which the intruder does not have an account or a password.

• reconnaissance

• access

• denial of service

• worms, viruses & trojan

Involve either crashing the system or slowing it down to the point that it is unusable.

• reconnaissance

• access

• denial of service

• worms, viruses & trojan

Malicious software that can be inserted onto a host to damage or corrupt a system, replicate itself, or deny access to networks, systems, or services.

• reconnaissance

• access

• denial of service

• worms, viruses & trojan

Come from individuals or groups that are more highly motivated and technically competent.

• structured

• unstructured

• external

• internal

Mostly inexperienced individuals using easily available hacking tools, such as shell scripts and password crackers

• structured

• unstructured

• external

• internal

Come from someone who has authorized access to the network with either an account or physical access.

• structured

• unstructured

• external

• internal

Arise from individuals or organizations working outside of a company who do not have authorized access to the computer systems or network.

• structured

• unstructured

• external

• internal

Can lead to physical damage to servers, routers, switches, cabling plant, and workstations.

• Hardware threats

• Environmental threats

• Electrical threats

• Maintenance threats

Temperature extremes (too hot or too cold) or humidity extremes (too wet or too dry).

• Hardware threats

• Environmental threats

• Electrical threats

• Maintenance threats