Respond to a data breach
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Business-side actors with duties under this Act, ranked by how often they appear.
Plus 9 non-business duties on Crown ministers, regulators, local authorities or tribunals — shown collapsed under each section below.
Walkthroughs that take you from a real business situation to compliance.
Practical guides for businesses affected by this Act, ordered by how closely they engage with it.
For each actor bound by this Act, the other UK Acts that bind them most often. Useful for understanding the full compliance landscape facing each role.
Sections that create concrete duties on businesses or carry penalties. Procedural and definitional sections are folded into the “Browse other sections” expander at the bottom of each group. Click any section title to read the source text on legislation.gov.uk.
Authoritative sources published by regulators or government explaining this legislation.
The regulators that administer or enforce this legislation.
Information Commissioner's Office
Data protection, freedom of information, privacy and electronic communications regulation. Enforces UK GDPR and Data Protection Act 2018. Issues fines for breaches. …
Office of Gas and Electricity Markets
Regulates gas and electricity markets in Great Britain. Issues licences for generation, transmission, distribution, and supply. Protects consumers and promotes competition. Also …
Office of Communications
Regulates telecoms, TV, radio, video-on-demand, postal services, and online safety. Issues licences for telecoms providers, manages spectrum. Now enforces Online Safety Act …
Water Services Regulation Authority
Economic regulator for the water and sewerage sectors in England and Wales. Sets price limits, monitors service quality, and enforces environmental duties. …
Utility Regulator (Northern Ireland)
Regulates electricity, gas, and water industries in Northern Ireland. Protects consumers, promotes competition, and ensures adequate utility supply.
Find other UK business legislation with related guidance.
Learn more about the bodies that enforce this legislation.