I haven't heard of thieves hooking up a device to your OBD port to steal your car, but Houston police are recommending port locks to keep them from being successful.
Have you heard of this?
https://www.khou.com/article/news/crime/houston-police-obd-port-lock-vehicle-theft/285-09d1ee91-0d14-4449-b92a-abca5782f907?utm_medium=social&utm_source=facebook_KHOU_11_News&fbclid=IwY2xjawIUOcdleHRuA2FlbQIxMQABHYBDSNhJsQhoZSs9mHoVsYcLmYxhdi19Wvuv7AMMlCLR55LJnigD-DeOIA_aem_x0assBQmWkXzil4DPse-NA
Have you heard of this?
https://www.khou.com/article/news/crime/houston-police-obd-port-lock-vehicle-theft/285-09d1ee91-0d14-4449-b92a-abca5782f907?utm_medium=social&utm_source=facebook_KHOU_11_News&fbclid=IwY2xjawIUOcdleHRuA2FlbQIxMQABHYBDSNhJsQhoZSs9mHoVsYcLmYxhdi19Wvuv7AMMlCLR55LJnigD-DeOIA_aem_x0assBQmWkXzil4DPse-NA