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Doppel

Series C · US

AI defense against impersonation and phishing

doppel.com (opens in a new tab)

Doppel builds AI-native defence against social engineering, using agentic AI to protect executives, employees, customers and brands from phishing, impersonation and fraud across digital channels. It helps recognised brands detect and dismantle attacker infrastructure while strengthening employee resilience through threat-informed training and simulation. By unifying digital risk protection, human risk management and email security, it connects threats into a real-time intelligence graph — the connection being what matters, since the same campaign typically appears across all three surfaces and looks unremarkable in any one of them.