Scammers are impersonating MyChart and sending fraudulent emails and text messages that promise patients a reward in an effort to steal sensitive personal information, Pennsylvania Attorney General Dave Sunday said.

There is no MyChart reward program, according to officials. The messages are designed to persuade recipients to click on malicious links and provide personal information.

MyChart is used by health care organizations to allow patients to schedule appointments, communicate with doctors and manage their medical records online.

St. Luke’s University Health Network, which uses MyChart, said the scam is targeting multiple health care organizations.

In a statement, St. Luke’s warned that it will not unexpectedly contact patients and ask for passwords, financial information or other sensitive personal information.

Lehigh Valley Health Network, which also uses MyChart, has warned its patients about the scam.

Health officials are urging patients who receive an unexpected message promising a MyChart reward not to click on any links.

Instead, patients should delete the message and contact their health care provider directly using a trusted phone number or website to determine whether the communication is legitimate.