Hundreds of thousands of potentially sensitive files from police departments across the United States were leaked online last week. The collection, dubbed “BlueLeaks” and made searchable online, stems from a security breach at a Texas web design and hosting company that maintains a number of state law enforcement data-sharing portals.

Wired reports Anonymous was behind the theft.

The collection — nearly 270 gigabytes in total — is the latest release from Distributed Denial of Secrets (DDoSecrets), a group similar to Wikileaks, KrebsonSecurity reports.

In a post on Twitter, DDoSecrets said the BlueLeaks archive indexes “ten years of data from over 200 police departments, fusion centers and other law enforcement training and support resources,” and that “among the hundreds of thousands of documents are police and FBI reports, bulletins, guides and more.”

KrebsOnSecurity obtained an internal June 20 analysis by the National Fusion Center Association (NFCA), which confirmed the validity of the leaked data. The NFCA alert noted that the dates of the files in the leak actually span nearly 24 years — from August 1996 through June 19, 2020 — and that the documents include names, email addresses, phone numbers, PDF documents, images, and a large number of text, video, CSV and ZIP files. The files also contain banking information, suspect photos, and other sensitive material.

The NFCA said it appears the data published by BlueLeaks was taken after a security breach at Netsential, a Houston-based web development firm.