So often we hear the term Open Source Software (OSS) and closely connect that term with the word ‘free’. But what does this actually mean? Is it free? And are there risks involved, especially for enterprise customers in the public or private sector? OSS is software where the software code is publicly accessible and anyone can modify, enhance and share. This differs from proprietary software which is governed by a license issued by the software’s authors that determines how that software can be accessed, used, modified and distributed.