The D4D Challenge was an international competition in which Orange Telecom offered its anonymized data to researchers seeking to address development problems in the Ivory Coast and Senegal. Research teams could apply by sending in a research proposal. Orange then relied on a panel of outside experts representing academic, business, public, and civil society interests to review project proposals and flag those that posed substantial ethical risks under the previously agreed framework. The thematic areas chosen for the D4D challenge were developed in consultation with various government ministries and international experts, who sought research results from the D4D Challenge to improve their policy and development outcomes. The winners of the D4D challenge in Senegal included researching the use of mobile phone data for electrification planning, analyzing how mobile phone access affects millet prices, and investigating how waterborne parasites spread through human movement.