A manufacturing facility uses specialized industrial controllers for critical processes and needs to implement important security updates. Which measure best helps reduce hazards while these updates occur?
Use a shared firewall policy for both business and production networks to unify upgrades
Provide a physical barrier around the equipment and maintain a tested emergency stop procedure
Deactivate physical controls to allow remote resets and expedite system patches
Change lighting fixtures to address electromagnetic interference challenges
A physical barrier and a tested emergency stop procedure helps ensure automation systems can be halted if unexpected behavior occurs, protecting workers and machinery. Deactivating physical controls can leave a workstation vulnerable if remote mechanisms fail. A unified firewall policy for both business and production networks can become a single point of failure. Changing lighting fixtures helps reduce electromagnetic interference, but does not specifically address hazard reduction during security updates.
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