Drawing on fieldwork from the unmarked graves of Sidero in the Greek region of Evros to the Sonoran desert and the deadly crossings at Ceuta in July 2026, this piece introduces the concept of border necrotechnics: the assemblage of automated systems, databases, and surveillance architectures through which states and corporations decide which lives are rendered killable, deportable, or indefinitely surveilled at and beyond the border. Building on Achille Mbembe’s necropolitics and on scholarship tracing how racial hierarchy is encoded into law and technology, I argue that the deaths of people on the move at increasingly digitised borders are better understood as foreseeable outcomes of political and technological design than as accidents of geography. The piece traces how responsibility is dispersed across a lucrative border-industrial complex, including firms whose technologies are marketed through their deployment against Palestinians, and how regulatory carve-outs such as those in the EU AI Act sustain zones of experimentation. It closes by setting out pathways toward accountability, transparency, and community-led alternatives.