Esther Onfroy

An expert in Android security and reverse engineering, Esther Onfroy, a.k.a U039b, is a French hacktivist, speaker, and co-founder of the Defensive Lab Agency, Exodus Privacy, Echap, PiRanhaLysis, and Pithus. She actively works with journalists, academics, NGOs, and private companies. She helps them better understand and respond to today's cybersecurity threats on mobile devices.

Esther Onfroy

Esther Onfroy

An expert in Android security and reverse engineering, Esther Onfroy, a.k.a U039b, is a French hacktivist, speaker, and co-founder of the Defensive Lab Agency, Exodus Privacy, Echap, PiRanhaLysis, and Pithus. She actively works with journalists, academics, NGOs, and private companies. She helps them better understand and respond to today's cybersecurity threats on mobile devices.