Tackling fairness issue

BuiltRight Constructions, a thriving construction company, recently started using AI algorithms in their hiring process to streamline and improve efficiency.

Previously their CEO handled most of their hiring decisions and decided that utilizing an AI system would help find the best candidates faster and with less effort. An AI hiring assistant was trained using their current employees' data and job performance.

What potential fairness issue(s) could BuiltRight be exposed to due to relying on an AI system for selecting candidates?