Rating Deployed OT Firewalls’ Effectiveness

An asset owner has many 100s of firewalls separating OT from IT. How does the asset owner measure the effectiveness of each firewall's ruleset and configuration? Jim tells you how they did this at Magna.

This will let you know where the OT security team should focus their firewall / OT perimeter security efforts. This automated effort also makes it easy to identify on an ongoing and frequent basis when firewall changes have introduced significant risk.

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