This document discusses the importance of information sharing between the public and private sectors regarding cybersecurity. It argues that collaboration is key to fighting cybercrimes effectively. While private sectors fear sharing information due to liability and regulatory concerns, timely sharing of technical data on threats could help detection and prevention. Developing trust between sectors is important for effective communication. The document also examines incentives that could encourage information sharing, such as legal protections and liability waivers for shared breach information. Overall it promotes greater cooperation between public and private stakeholders in cybersecurity.