The National Audit Office has issued a damning report of the UK government's approach to digital security.
The central teams and departments dedicated to protecting information were found to be operating without cohesion and governance.
There are 73 teams and 1,600 staff across government with data security responsibilities.
However there was a lack of awareness among staff about who to contact for guidance, the NAO said.
"None of the departments we interviewed understood the specific roles of the various bodies involved, making it difficult to identify any single arbiter of standards or guidance," the report stated.