At its final meeting at the end of November 2016, the Permanent Conference of the German Ministers of the Interior has called for, among other things, the extension of the requirement of data retention to messenger services. The initiative was justified by the threat of terrorist attacks and the rapidity of technological development. A new law on data retention was adopted in Germany in December 2015 which requires telecommunication providers to retain data such as phone numbers, time and place of communication (except for emails) and IP addresses for four or ten weeks.