A federal case in Atlanta is quietly testing whether using a privacy-focused phone operating system can be treated as a crime. That should alarm everyone who cares about digital rights, not just Cop City activists.
According to The Guardian, the US Department of Justice is pursuing charges against Sam Tunick, an Atlanta resident connected to the movement against the police training facility known as Cop City. The core of the case is this: Tunick had GrapheneOS on his phone, an open-source operating system designed to give users strong privacy controls, including the ability to wipe a device by entering a specific passcode. When federal agents interrogated him at Hartsfield-Jackson airport and pressured him to unlock his phone, it wiped itself. Now he’s facing prosecution under a federal statute that makes it a crime to destroy property to prevent its seizure.
Cybersecurity experts say this may be the first time that law has been used against someone specifically for running GrapheneOS. Bill Budington of the Electronic Frontier Foundation and France-based surveillance expert Christophe Boutry both said they had not seen a similar case. Boutry put it plainly: “It’s concerning, and sends the message that GrapheneOS is criminal by default.”
The backstory matters here. Tunick was returning from a vacation in the Dominican Republic when, unknown to him, he had already been placed on a terrorism watchlist because of his alleged ties to the anti-Cop City movement. Three hours before his plane landed, a homeland security agent had circulated an email with his name and photo, flagging him for “suspected terrorism activities.” When he arrived, agents took him to a private room and spent the interrogation asking him about child sexual abuse images, which his legal team describes as a clear pretext to fish for information about his political associations.
Tunick asked for a lawyer four times. He was denied each time. Agents produced no warrant and never read him his rights. When he finally gave them a passcode under repeated pressure and threats to seize his device, the phone wiped itself, which is exactly what GrapheneOS is designed to do under certain conditions.
This case fits into a broader, troubling pattern. Several state prosecutions of Cop City protesters have collapsed in recent years, and this is the second federal attempt in quick succession. But the GrapheneOS angle takes it further. Boutry notes that in Spain, police in Catalonia have been profiling people who own Google Pixel phones, simply assuming GrapheneOS means criminal activity. A tool built for journalists, lawyers, and anyone who wants basic control over their own data is being recast as evidence of wrongdoing.
- GrapheneOS works on Google Pixel phones and is widely used by privacy-conscious individuals, security researchers, and journalists
- The “duress PIN” feature that wipes a phone is a known, documented privacy function, not a covert tool
- The federal statute being used was not written with phone operating systems in mind
- A ruling on the suppression motion is expected no earlier than late October
The constitutional questions here are serious. Tunick’s public defenders filed a motion to suppress all evidence obtained during the interrogation, arguing his rights were violated repeatedly. A judge’s decision won’t come for months. But the chilling effect is already real. If running a privacy OS can be framed as obstruction, then every security-conscious person with a Pixel phone is potentially a target. That’s not a hypothetical. That’s the direction this case is pointing.