Security News > 2021 > October > Three OT security lessons learned from 2021’s biggest cyber incidents

In each instance, there are key OT security lessons to be learned, so that other organizations can avoid repeating history.

Once Colonial Pipeline knew its IT operations were affected, it chose to proactively take its OT systems offline to prevent the attack from spreading.

With a better understanding of how IT and OT networks are connected and are communicating, security teams can respond to threats more quickly.

The Oldsmar water treatment plant was able to prevent more damage from the attack because of their alert employees, but many other OT systems in similar treatment plants may lack the visibility security teams need to identify these attacks.

Train systems rely on a variety of critical OT systems that integrate with IT systems.

Organizations that have learned the lessons of network segmentation, visibility and third-party risk assessment will be better prepared to minimize the impact and likelihood of similar incidents happening to them in the future.

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