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Taylor Swift’s legal representatives have issued a warning of potential legal action against Jack Sweeney, a University of Central Florida student, for his online activity tracking the pop star’s private jet movements.

Sweeney, known for his social media accounts detailing the flights of various public figures using publicly accessible Federal Aviation Administration data, has been specifically asked by Swift’s lawyers to cease posting about her travel, citing concerns over “stalking and harassing behavior.”

Swift’s camp argues that the detailed tracking and dissemination of her flight information have led to both “emotional and physical distress,” with a spokesperson indicating a link between the singer’s stalkers and the information shared on these jet-tracking accounts.

Despite the stern legal warnings, Sweeney views these actions as attempts to deter him from utilizing and sharing data that remains public. In addition to Swift, Sweeney has other accounts that track other notable individuals aircrafts, including Elon Musk, Mark Zuckerberg, and Jeff Bezos.

This all comes as Meta, the conglomerate owning Facebook and Instagram, blocked Sweeney’s accounts following a second letter from Swift’s legal team accusing him of “harassing conduct.”