In one embodiment, a method includes, by a first computing device associated with a first user, receiving a connection request from a second computing device associated with a second user. The method also includes confirming that the connection request is associated with the second user and sending to the second computing device an acceptance of the connection request in response to confirming that the connection request is associated with the second user. The method further includes receiving from the second computing device an acknowledgement of the acceptance and, in response to the acknowledgement, allowing information to be exchanged between the first and second computing devices.