https://www.theverge.com/circuitbreaker/2017/10/25/16545764/apple-face-id-quality-change-report-bloomberg-false-accuracy

Apple is calling into contention an earlier report from Bloomberg that claimed the company had lowered the accuracy of the face recognition in order to increase iPhone X production yields, calling the report “completely false” in a statement to The Verge.

The full statement from Apple elaborates that 1,000,000:1 accuracy it had originally announced is still valid. Depending on how you want to read the statement, it is possible that Bloomberg’s original report — which said that Apple had lowered quality specifications to allow components to be produced faster — is also correct, and that Apple is using careful wording here when referring to the “accuracy” of the sensor, which could remain the same, even if overall part quality control was reduced.