ABS lights on

Hi, I just had wheel bearings changed and now all my dash lights are on, the Brake, , ABS, VSC. The garage who changed them said the wheel bearing they just put on already went bad without me even driving that and it kicked the lights on. I want to know what would have caused this or if that would actually even be the case. I just had them replace all bearings/struts/and the rear wheel drums too. Plus tires. Any help would be appreciated!