Retaliation is also illegal, and the law protects you if you stand up against discrimination. Retaliation occurs when an employer treats an employee worse or takes action against an employee as a result of that employee engaging in protected activity.If you feel you have experienced illegal employment discrimination, fill out the intake questionnaire and email or mail it to the PHRC. Pennsylvania employees are protected from employer retaliation under various state and federal laws. Learn about the laws surrounding employer retaliation in Pennsylvania. Understand your rights and protections against unfair treatment in the workplace. Retaliation is the most frequently alleged basis of discrimination in the federal sector and the most common discrimination finding in federal sector cases. The law protects employees from retaliation from employers when the employee engages in protected activity. If you believe an employer violated the law, you must file a complaint with the appropriate agency right away. All employees whose employers fall under the ADA, the PHRA, the ADEA or Title VII are protected against illegal retaliation in the workplace.