A data exposure at private event group Dialog has exposed personal information of multiple US national security personnel, including an intelligence official advising the National Security Council and an active-duty intelligence officer. The Pentagon is investigating.

The leak included details like date of birth, home address, mobile number, and private authentication tokens for 222 Dialog event registrants, including senior military and national security officials from the US and its allies. Dialog internally characterized it as a cyberattack but evidence points to misconfiguration.

Dialog's files on these officials contained personal predictions and biographical details, raising concerns about potential operational risks. The Pentagon’s operations security team is examining the matter, while identifying specific units could sometimes implicate classified information.

The leak highlights how personal data can be a valuable asset for foreign intelligence services aiming to identify, surveil, and approach US operatives. Dialog's questionnaire produced a range of personal disclosures, from warnings about AI datacenter terrorism to predictions of political violence due to job displacement.