According to one exemplary embodiment, a method for increasing security when sending a plurality of messages over a network connection is provided. The method may include determining if the plurality of messages on a staging queue satisfies a batch threshold value. The method may also include determining a security key with a message destination based on determining that the plurality of messages on the staging queue satisfies the batch threshold value. The method may then include encrypting the plurality of messages based on the determined security key. The method may further include sending the encrypted plurality of messages to the message destination over the network connection.