Mastodon.

The data comes from the apps and infrastructure of P3 (a subsidiary of Navigate360), which is used by intelligence and law enforcement agencies across the United States and in several other countries, as well as tens of thousands of schools. According to the company, it's the "#1 Platform for Fusion Centers and Major City Intel Units." The data also includes information on the company's customer accounts, in addition to copies of the support requests submitted by users.

The dataset challenges some of the statements made by P3. While P3 says that the communications on the system are encrypted, however the data was allegedly retrieved in plaintext. P3 also claims that the tip collection and messaging process is anonymous, however the data indicates that administrators are secretly given the ability to de-anonymize users.