It has nothing to do with Social Security's funding crisis. Instead, the Social Security Fairness Act will increase benefits for 2.8 million Americans that some say have had their checks unfairly reduced over the years. As a result, these seniors are now entitled to back pay. Here's what we know so far.

President Joe Biden recently signed the Social Security Fairness Act into law. This new legislation will have a big impact on retired teachers and other public sector workers. The law repeals two rules that have been in place for decades: the Windfall Elimination Provision (WEP) and the Government Pension Offset (GPO).

The Social Security Fairness Act eliminates two provisions that reduced Social Security benefits for some retirees who also received pension income.