We have discovered that there is the possibility that a map file for a terrain area which may be used for JWOC 2020 has become available for download, and that a limited number of persons may have gained access to the file. The Organising Committee for JWOC 2020, in consultation with the IOF Senior Event Adviser, have decided to make this map file publicly available by publishing it on IOF Eventor and on the JWOC2020 website.