US Patent 12015581 Selectively exclude recipients from an end-to-end encryption enabled group chat

Embodiments include receiving input of a new message for a group of members having end-to-end encryption in which first keys encrypt and second keys decrypt the new message, determining that a subset of the members in the group is excluded from receiving the new message, and selectively encrypting the new message for the members of the group by encrypting the new message by first keys corresponding to ones of the members of the group while choosing not to encrypt the new message with first keys corresponding to the subset of the members. An aspect includes transmitting the new message encrypted by the first keys to the members, and in response to choosing not to encrypt the new message with first keys corresponding to the subset, causing a system message to be transmitted to the subset excluded from receiving the new message, the system message affecting a presentation to the subset.