A method, system and program is provided for watermarking messaging sessions such that the origin of recorded messaging sessions is traceable. A distinguishable watermark is applied to message entries within a messaging session. The messaging entries are then recorded with the distinguishable watermark applied, such that the origin of the message entries is traceable according to the distinguishable watermark. Users participating in the messaging session receive a recording of the watermarked message entries for the messaging session, wherein user of the recording of the messaging session is traceable according to the watermark.