Proton AG has stepped into a legal fight over surveillance transparency by hosting a researcher's map of Flock license plate readers on its own infrastructure. The Swiss privacy company's move gives the Flock Surveillance Map a global home after its creator faced cease-and-desist threats from the camera maker.

What You Need to Know

Flock operates automatic license plate recognition cameras used by police departments across the U.S. Security researcher Joshua Michael built a public map of those camera locations from leaked data. Flock responded with a cease-and-desist letter, and Michael's original site is now restricted to U.S. visitors. Proton's version is accessible worldwide and sits under Swiss jurisdiction, which complicates any legal action against it.

The Standoff Over Surveillance Data

Flock's cease-and-desist letter targeted Joshua Michael, the security researcher who compiled the Flock Surveillance Map from leaked company data. The original site remains online but is accessible only from within the U.S., forcing international users to rely on a VPN.

Proton's version removes that barrier. The company published the map at proton.me/flock-camera-map, where anyone with a browser can search by ZIP code to see where Flock's ALPR cameras are installed.

Proton framed the decision as a privacy right rather than a technical protest. "You have a right to know who's recording you when you leave home, especially when a private company controls the data and it's unclear how law enforcement uses that information," the company said in its announcement.

Why Switzerland Changes the Legal Calculus

Proton AG is based in Switzerland, a jurisdiction that has historically resisted U.S. legal demands on privacy companies. That geography matters here. A cease-and-desist letter carries less weight against a Swiss entity than against an individual researcher operating domestically.

The company's portfolio, which includes Proton Mail and Proton VPN, is built on the premise that user data should be shielded from both corporate and government overreach. Hosting the Flock map extends that ethos into physical-world surveillance.

Flock has not publicly indicated whether it will pursue action against Proton. The company's earlier letter to Michael suggests it views the map as a threat to its commercial relationships with municipalities.

The Limits of the Map and What It Shows

Proton's map is not a live feed. It relies on data from November 2025, making it a snapshot of Flock's network at that moment rather than a real-time tracking tool.

Users seeking current camera locations have other options. MapQuest recently added a surveillance layer showing ALPR placements from Flock and other companies, including camera direction.

  • Proton Map: Based on November 2025 data, searchable by ZIP code and accessible worldwide.
  • MapQuest Layer: Shows current ALPR locations from multiple companies, including camera direction.
  • Original Site: Restricted to U.S. visitors and still facing legal pressure from Flock.

The data gap matters for anyone planning routes around surveillance. A six-month-old snapshot may miss newly installed cameras or include ones that have been removed.

Why This Matters

The dispute sets a precedent for how privacy companies can shield transparency projects from legal pressure. If Proton's Swiss hosting strategy holds, it offers a template for researchers facing corporate threats.

Municipalities that contract with Flock now face a clearer public record of where cameras sit. Residents can search their own ZIP codes and bring questions to local officials, shifting the debate from abstract privacy concerns to specific street corners.

Flock's response will signal whether surveillance vendors can use legal threats to suppress public maps. A successful challenge against Proton would chill similar projects. A retreat would embolden researchers and privacy advocates.

For now, the map remains live and globally accessible, turning a researcher's leaked dataset into a permanent public resource under Swiss protection.