A BI report about Meta's internal "block" lists has drawn attention from current and former HR professionals from companies including Google and Nike.

Managers have hit walls trying to rehire former employees due to mysterious and unexplained blocks on their profiles.

Two former Meta managers said they could add former employees to the lists, even those without documented performance problems.

Former employees and managers have been left in the dark about what it takes to get off Meta's block list.

Meta's secret block list has raised concerns of a decreasing talent pool for the firm. Some ex-employees have allegedly found themselves blocked from the company