Understand threat events you are seeing in-house
Get your own house in order: Start by understanding the events within your four walls and how they correlate. You can't begin to share information with others until you have an understanding of what's going on inside your own organization. There are many tools out there today that can give you this picture of your event data. Some vendors in this space include TruStar Technology, which specializes in aggregating threat intelligence to share with other verticals and regional geographies, and threat intel providers Anomali and ThreatConnect.
Image Source: Andrey_Popov via Shutterstock