Produced by the Citizen Lab at the Munk School of Global Affairs, University of Toronto.Citizen Lab research into the use of commercial filtering products in countries under the rule of authoritarian regimes has uncovered a number of devices manufactured by U.S.-based Blue Coat Systems in Syria and Burma. Although Blue Coat has recently acknowledged the presence of their devices in Syria, this brief contributes to previous findings of devices in the country, documents additional devices in use in Syria, and identifies Blue Coat devices actively in use in Burma. This brief urges Blue Coat to investigate these claims and take action to prevent the further use of its technology in Syria and Burma