A "secure message" means a private and protected message that cannot be accessed or read by unauthorized people. It keeps the information safe and ensures only the intended recipient can view it. Full definition
They have mobile applications in the works which will allow lawyers (or other users, but we're not concerned about them) to send secure messages right from their mobile device. (lawyerist.com)
The child's primary care provider was then consulted via secure messaging through the electronic medical record to confirm preliminary eligibility prior to the well - child visit. (academic.oup.com)
I do recommend calling and finding out how long after the fee is charged you can still cancel and be refunded, and I like to get that in writing via secure message. (milenomics.com)