Your Government Buys Your Data Instead of Getting a Warrant

#The Fourth Amendment workaround that lets federal agencies skip the warrant

The Fourth Amendment protects you from unreasonable government searches. Police need a warrant to search your home, your car, or your phone. That's been settled law for decades.

But federal agencies figured out a workaround. If a data broker already collected the information you cared about, and is selling that information commercially, the government can just buy it. No warrant. No judicial oversight. No probable cause. It's the legal equivalent of "the Target database knows where you were last Tuesday, so the government's purchase of Target's database doesn't require a warrant."

This is called the "third-party doctrine." The legal theory is that you have no reasonable expectation of privacy in information you voluntarily share with third parties. Your phone sends location data to your carrier and to ad networks. Therefore, the argument goes, you've already given up your privacy in that data. The government buying it doesn't re-violate a right that you already gave away.

Every meaningful protection of the Fourth Amendment bends to this argument. This post covers how it works, which agencies use it most, what's been disclosed, what's classified, and what (limited) pushback exists.

#Who's buying

ICE signed data-sharing agreements with the SSA, IRS, and HHS, allowing requests of up to 50,000 records per month. Including home addresses, banking data, and contact information. They use Palantir's ELITE facial recognition app, Cellebrite mobile forensics, and license plate reader databases.

FBI purchases cell phone location data from commercial brokers. In 2025, FBI queries of Americans' data under FISA Section 702 rose 35% to 7,413 queries.

DOD purchased location data from apps used by Muslim prayer apps, a dating app, and a weather app. The data revealed the movement patterns of military personnel and intelligence officers.

#Section 702 expires April 20, 2026

Section 702 of the Foreign Intelligence Surveillance Act lets the NSA collect communications of foreign targets. but sweeps up massive amounts of American data in the process. The FBI can then search this database for Americans' communications without a warrant.

The law sunsets on April 20, 2026. The key debate: whether to finally require warrants for searching Americans' data in the 702 database. The FBI admitted to improperly searching data on January 6 participants and 2020 BLM protesters.

#What this means

Your data is being collected by private companies, sold on the open market, and purchased by the government. all without a single warrant, subpoena, or court order. The legal framework hasn't caught up to the technological reality.