Pharmacy store chain operator Walgreens notified some of its customers of a data security incident involving its mobile app.
According to a sample notification letter sent to Office of the Attorney General of California, Walgreens detected an error involving its app’s secure personal messaging feature on January 15, 2020.
The pharmacy store chain operator subsequently launched an investigation to determine what happened. This effort revealed that a flaw had allowed some customers’ messages exchanged through the app to be viewable to other customers between January 9, 2020 and January 15, 2020.