When seven different responders and law firms were thrown into the same ransomware negotiation chat by a threat actor, Eder Ribeiro, Director of Global Incident Response at TransUnion, it became his framework for managing global incident response: map the data, map the people, and look as holistically as possible before acting. To do this, executive trust must be built long before the 3AM phone call requiring million-dollar decisions. Eder breaks down complex security issues "Barney style" and with empathy, remembering that instruction works best when adapted to how the audience receives it, not how the teacher wants to give it.

For emerging AI risks, he's tracking prompt injection as the attack vector that creates a more linear path to data, particularly in enterprise bundle add-ons that sit in the gray zone between public tools and properly isolated solutions. When investigations spiral, he returns to "control the controllables," reset without finger-pointing, and compress what should take weeks into days. His military-informed leadership philosophy centers on generating agency and freedom for his team, accepting that incident response inherently lacks balance and compensating through daily autonomy.

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