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Enforcement Media
- The channel through which the information or a resource access is granted.
- Sometimes the media may not be trustworthy (for example the network)
- In the security policies and mechanism this aspect has to be taken care of.
Threat and Attack
- Threat is a potential violation of security
- Attack is actual violation.
- Leakage of information
- Modification of message while in transit
- Loss of information
- Proxy
- Active and passive attacks
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