Daniel Mende is a German security researcher with ERNW GmbH and specializes in network protocols and technologies. He is well known for his Layer2 extensions of the SPIKE and Sulley fuzzing frameworks. He has also discussed new ways of building botnets and presented on protocol security at many occasions including Troopers, ShmooCon and Black Hat. He has written several tools for assessment of telecommunication networks like ss7MAPer, Pytacle, GTP-Scan, Dizzy and APNBF.