Maximum Security (also known as Maximum Security Management Services, Maximum Security Protection Service, Maximum Security Investigations) is a debt collection agency, not a medical alert provider. It has a history of deceptive practices, including falsely claiming to be law enforcement or a medical alert company. The FTC, BBB, and California DCA have investigated it. In 2021, the FTC sued Maximum Security for violations of the Fair Debt Collection Practices Act. Consumers should be wary of unsolicited calls from this entity.