Federal courts across the country have issued a warning regarding the use of third-party services.  This warning is applicable to all CM/ECF filers:

CM/ECF filers should be aware of the potential to inadvertently share restricted documents when using third-party services or software.  Sharing CM/ECF filing credentials and PACER account credentials with a third-party service provider or designating that provider as a secondary recipient of a Notice of Electronic Filing (NEF) or Notice of Docket Activity (NDA) will give it access to sealed case information and documents in violation of court order.  You are urged to use caution in your computer security practices to ensure that sealed documents to which you have access are not disclosed. Fee exempt users should not share the documents they obtain from PACER under the exemption, unless expressly authorized by the court.

See e.g., Website for U.S. Bankruptcy Court for the District of Arizona.