Security has become so critical to enterprise networking that it's developing along several different lines simultaneously. Like many migrations, these are spurred by outside forces ranging from increasingly active malware writers to regulatory pressure from Gramm-Leach-Bliley (GLB), HIPAA, Sarbanes-Oxley and other industry-specific rules. Functions are migrating from passive (sounding the alarm when something goes wrong) to active (preventing a wide range of intrusions and vulnerability exploits). Controls are migrating from the individual, with each security function operating as an island, to the centralized, with access control and policy-enforcement frameworks linked to one another and to the remainder of the network infrastructure.

At Network Computing.

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