The evolution of enterprise security since 9/11
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As the United States commemorates the terrorist attacks that killed nearly 3,000 people, injured 10,000 more and changed the course of life for many on September 11, 2001, those in the industry reflect on the changes that have happened in the security profession since.
https://www.securitymagazine.com/articles/96651-the-evolution-of-enterprise-security-since-9-11