Boston Police today issued tips on how to identify a licensed Boston cab (they all have medallions on the right side of the trunk, along with other stickers on windows and inside) but stopped short of saying don't use services like Uber or Hailo:
Do not get into unmarked taxi or livery cars.
Use only licensed cabs or clearly identifiable livery service vehicles that are called to your location.
Also, police say, make note of the cab's medallion or license number and once inside, call a friend or someone and "let them know what cab you’re in where you’ve asked driver to take you."
The tips come in the wake of sexual attacks on two women by drivers of what police have said are unlicensed taxis, one who picked up a woman along Northern Avenue in South Boston on Aug. 6, the other who picked up a woman early Sunday in Allston.