This eBook argues that perimeter defenses are obsolete in the cloud era. With 90% of cyberattacks starting via email, attackers exploit hybrid work and cloud adoption to launch ransomware, phishing, and BEC campaigns. Traditional antivirus and reputation-based tools fail against these blended attacks. Proofpoint recommends a layered, people-centric approach integrating visibility into Very Attacked People, real-time phishing detection, supplier account monitoring, and user training. By protecting email, cloud accounts, and users holistically, organizations can better secure the new perimeter: people.

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