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Insider Threat Examples

Examines real-world insider threat examples and case studies that illustrate how internal actors have caused data breaches, intellectual property theft, and operational disruptions. Each example highlights lessons learned and practical takeaways for strengthening organizational defenses.

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Insider Threats

Insider Threat Examples: Real Cases That Cost Millions

In July 2020, a 17-year-old in Florida convinced a Twitter employee to hand over internal credentials. Within hours, the attacker had hijacked accounts belonging to Barack Obama, Elon Musk, Joe Biden, and Apple — tweeting a Bitcoin scam that netted over $100,000. The most sophisticated firewall in the world wouldn&

Carl B. Johnson Dec 20, 2020 7 min read
Insider Threat Examples

Insider Threat Examples: Real Breaches That Cost Millions

The Threat Already Inside Your Building In 2022, a former employee at Cash App's parent company, Block, downloaded reports containing the personal information of 8.2 million customers — months after leaving the company. Block disclosed the breach in an SEC filing, and lawsuits followed. The attacker didn'

Carl B. Johnson Oct 01, 2019 7 min read