Noise infusion banned from statistical products published by Census Bureau
The US Commerce Department ordered a ban on noise infusion for all statistical releases from the Census Bureau and the Bureau of Economic Analysis, prioritizing coarsening and suppression. This technique is core to differential privacy, which adds calibrated random noise to protect individual records while preserving data utility. The ban removes a key privacy tool that has been used since 2020 to prevent reconstruction attacks.
Without noise, released numbers become less reliable and more transparent, hurting researchers who rely on accurate, privacy‑preserving statistics; the 2020 Census already showed reduced accuracy compared to previous cycles. The move threatens the balance between confidentiality and usefulness, potentially degrading the quality of public‑policy decisions that depend on these datasets.