I never tire of reading about the absolute shipwreck that is Uber.
"Uber also covertly operated the microphones in its drivers' phones to listen for the chimes the Lyft app made: drivers who had both Lyft and Uber installed on their devices were targeted for (strictly temporary) bonuses."
Wonderful. More generally, as @pluralistic puts it Uber "invented algorithmic wage disrimination, an exciting new field of labor-law violations".
(from https://pluralistic.net/2023/05/19/fake-it-till-you-make-it/#millennial-lifestyle-subsidy)