This eBook recounts real-world breaches at companies like Prestige Software, EyeMed, Twitter, and Mashable, showing how misconfigurations, compromised accounts, and OAuth misuse led to massive data exposures. The central theme is that people—not just technology—cause most data loss, whether through error, negligence, or intent. Each case study details impacts such as regulatory fines, reputational damage, and business disruption. The report emphasizes lessons learned, including the importance of CASBs, user awareness training, and unified DLP/ITM strategies. Proofpoint positions its people-centric security as key to preventing insider-driven data compromise.

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