What are the key security risks and considerations to adopt firewall/VPN technology?

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Some key security risks and standards which should be considered while adopting a firewall/VPN are as follows:

Risks:
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Risks are threats to your objectives. A proper risk analysis should be done before making any technology decision.
Risk assessment should address the following:

What is at risk?
What is its value?
What are the threats?
What is the probability of occurrence?

Some of the common security risks are as follows:
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Single point of failure
Loose security policies
Support protection
Limitation of technology
False sense of security
Weak encryption
Latency

Here are some firewall/VPN standards to consider:
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Open architecture
Packet filteration
Default to denial
Auditing capabilities
Access control
Logging capabilities
Intrusion detection
Extended user authentication
Secured subnets
Strong encryption
Network management systems
Secure back-up
Statefull inspection
Real-time traffic monitoring and alerting system
Device management
Secure tunneling
Application layer traffic inspection


This was first published in February 2002

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