This page contains various security-related guidance for use across government.
You can find the GSeC International guidance here.
You can find the Secure by Design approach here.
You can find the GovAssure guidance here.
You can find the Modular Security Schedules here.
You can find the email guidance here.
You can find the How to Publish Information Safely Quick Guide here
You can find the social media guidance here.
You can find guidance on writing documentation for security.gov.uk here.
You can find the Cyber Assessment Framework (CAF) at NCSC's website.
You can find the unauthorised disclosure investigation guidance here.
Guidance on the responsibilities of an IAO in managing the risks to personal information and business critical information held within a department can be found here: The role of Information Asset Owners (IAOs) in government.