The Federal Communications Commission on Friday announced it has proposed fines against the four largest wireless carriers in the United States for allegedly selling access to their customers’ location information without taking reasonable measures to protect against unauthorized access to that information.

Among the fines that the FCC has proposed include:

Jaclyn Jaeger is a freelance contributor to Compliance Week after working for the company for 15 years. She writes on a wide variety of topics, including ethics and compliance, risk management, legal,...