This paper looks at the implications of whistle-blower Edward Snowden’s revelations of the global nature of US and UK mass surveillance of innocent citizens and businesses. It looks at the case of spying on the Brazilian national oil company, Petrobas, and the response of the Brazilian government. It makes the case for the adoption by businesses and government of publicly auditable open source software to protect Scottish sovereignty, and argues that Scotland could quickly become a global leader in an emerging market for open source software.