8 ways physical security has evolved

Physical security has come a long way since the advent of the lock and key. But for all of its changes, the greatest aspect of the evolution of physical security is how it has begun to mesh with our digital world. Here are eight of the most significant developments that have occurred over time in the field of physical security.
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"What we're seeing is the merging of electronic and physical spaces," says Chris Nickerson, founder and chief consultant at Lares Consulting. "We've gone away from straight physical security to working with the social and electronic sides to make sure that a person is who they say they are."

Read on for the improvements we've seen in physical security in recent years.

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