The high-stakes battle over civil liberties in the US has taken a dramatic turn with news that the Department of Justice is taking a federal case against Atlanta resident Sam Tunick, accused of using an encrypted phone to evade law enforcement during protests against the contentious 'Cop City' police training centre. The prosecution's focus on GrapheneOS, a mobile operating system designed to protect user data, has raised alarm bells among cybersecurity experts, who warn that this could set a worrying precedent for the use of privacy-enhancing technology.
GrapheneOS, used exclusively by Google Pixel devices, allows users to remotely wipe their phone's contents with a passcode. In this instance, Mr Tunick allegedly utilised this feature after being stopped at Atlanta's Hartsfield-Jackson airport on 24 January 2025, where he was questioned about his suspected links to the 'Cop City' opposition movement. This grassroots coalition of local and national organisations has been vocal in its criticism of the £86 million facility, citing concerns over police militarisation and deforestation amidst the climate crisis.
Mr Tunick's detention at the airport has sparked accusations that authorities may have exploited their powers to investigate his protest connections under the guise of a 'secondary inspection'. Testimony from a recent hearing revealed that Mr Tunick was denied access to a lawyer despite repeated requests, while agents did not present a warrant or read him his rights. The motion filed on his behalf seeks to suppress all evidence obtained by agents, including the contents of his phone after he provided access.
The case against Mr Tunick marks the second federal effort targeting 'Cop City' protesters in recent months, following an indictment announced last month. This development has significant implications for British readers, who may be aware that their own government has faced pressure to address concerns over police militarisation and surveillance technologies used during protests.
Experts warn that if this case sets a precedent, it could have far-reaching consequences for individuals using privacy-enhancing technology in the US – and potentially beyond. As Christophe Boutry and Bill Buddington from the Electronic Frontier Foundation pointed out, 'This could establish a situation where technology designed to protect users is deemed "criminal by default". Neither expert reported encountering a similar legal challenge previously.