The Risk of Using Unsecure Protocols
It would seem obvious to anyone that using a secure protocol is better than using an unsecure one. However, high security protocols engender an overhead on communications and are not always appropriate. An apparently secure protocol could turn out to have design faults.
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Application
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Data carried within a secure building on a private network is well protected by physical security and corporate policy. Private networks become more vulnerable to attack and snooping where wireless elements are employed or where users are allowed to log in remotely.
Security Failures
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Organizations handling private financial, medical or legal information are legally obliged to protect that data within their organization and also to secure it from break ins. Such organizations have used authentication and encryption systems like the Secure Socket Layer (SSL) and Kerberos. However, both these popular security system were found to have vulnerabilities and had to be redesigned.
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Risks
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The risks of using unsecure protocols is greater where the user believes he is protected by security software and is unaware of their flaws. Secure protocols encourage users to relax their strict procedure when handling sensitive data. The weaknesses in a protocol are often made apparent by unauthorized access and release of data.
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References
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