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How to get a security code to sign in to your GOV.UK One Login and what to do if you're having problems receiving a code.
How to use a passkey to sign in and what to do if your passkey does not work.
How we've tested the accessibility of the GOV.UK One Login service, issues we've found, and how you can report problems.
The Security Open Call is a competition which UK Defence Innovation (UKDI) runs to find proposals that address security challenges faced by government stakeholders.
Good Practice Guide (GPG) 45 helps you decide how to check someone's identity.
Organisations are invited to take the Cyber Resilience Pledge. Commit to three actions that will have an immediate positive impact on your resilience to cyber attacks.
Cyber Essentials is a government-backed, industry-supported scheme to help organisations protect themselves against common online threats.
A list of Industry Security Notices (ISNs) for defence personnel to highlight security changes or information.
This Code of Practice and wider governance package shows boards and directors how to manage digital risks and protect their businesses and organisations from cyber attacks.
This is the 1.0 version of the UK digital verification services (DVS) trust framework, which sets rules for an organisation to follow if they want their service certified as a trustworthy DVS
Find out where to report a cyber incident in the UK, Isle of Man or Channel Islands.
We’re working to help people securely prove who they are without having to present physical documents.
How to apply to join the register and keep your information up to date.
Supplier Assurance Questionnaire (SAQ) and Flow Down Risk Assessment (RA) Question sets.
A list of organisations which have signed the Cyber Resilience Pledge.
A dedicated space with the latest updates, following the 2025 cyber-attack on the Legal Aid Agency’s online digital services.
Frequently asked questions about the Legal Aid Agency cyber security incident.
Guidance on how digital identity providers can become certified to complete digital identity checks for the 'Right to Work', 'Right to Rent' and DBS schemes.
First published during the 2019 to 2022 Johnson Conservative government
The code of practice and implementation guide sets out measures to address cyber security risks to artificial intelligence (AI) systems.
Do not include personal or financial information like your National Insurance number or credit card details.
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