Last reviewed 29 August 2026
The most common question early-stage founders ask is how to stop someone stealing their idea. The honest answer is that ideas themselves are not protected by UK intellectual property law. Copyright protects expression, not concepts. Patents protect inventions, not business plans. Trade marks protect brands, not strategies.
That is not as bleak as it sounds. Around every good idea sits a cluster of protectable assets: the code, the brand, the design, the data, the process, the customer relationships and the confidential information that makes execution possible.
This guide explains what can actually be protected, in the order it becomes worth doing.
What the law will and will not protect
Copyright arises automatically in code, documents, designs, databases and content — but only in the particular expression. Someone who independently builds a product doing the same thing, written differently, does not infringe.
Patents can protect inventions that are new, involve an inventive step and are capable of industrial application, provided they are not excluded subject matter. Business methods and computer programs 'as such' are excluded, though software with a technical effect may qualify. Registered designs protect the appearance of a product, and trade marks protect the sign under which you trade.
Confidentiality: the practical first line
The law of confidence protects information with the necessary quality of confidence, imparted in circumstances importing an obligation, where unauthorised use causes detriment. It applies to ideas in a way that copyright does not.
Make the obligation explicit: use NDAs with prospective partners, suppliers and contractors; include confidentiality clauses in employment contracts; mark material as confidential; limit distribution; and keep a record of who received what and when. Where the information qualifies, the Trade Secrets (Enforcement, etc.) Regulations 2018 provide additional remedies — but only if you took reasonable steps to keep it secret.
Get ownership right from day one
Protection is worthless if you do not own the asset. Employees' work-related copyright usually vests in the employer, but contractors, freelancers, agencies and co-founders who are not employees keep theirs unless there is a written assignment.
Put assignments in place with everyone who contributes: developers, designers, copywriters, data scientists, and any co-founder working before formal employment begins. Assign to the company, not to an individual founder, and keep the signed documents somewhere you can find them in three years' time.
Brand: the asset most founders under-protect
For most early businesses, the trade mark is the highest-return protection available. It stops competitors trading under a confusingly similar name, supports domain and platform takedown requests, and becomes a genuine balance-sheet asset.
Clear the name before launch through register and trading-name searches, file in the classes covering your current and near-term activities, and consider key overseas markets separately. Register the domain variants and social handles at the same time, and hold them in the company's name rather than a founder's personal account.
Disclose in stages
Most idea theft is not litigation-worthy espionage; it is voluntary over-disclosure. Share the problem, the market and the outcome before sharing the method. Give demos rather than architecture documents. Provide detail proportionate to how far the conversation has progressed.
Institutional investors generally will not sign NDAs, and pitching without one is standard. Manage it by keeping genuinely novel technical detail out of the deck, filing any patent application before public disclosure, and remembering that a reputation for confidentiality matters to investors too.
Execution as protection
Legal rights are one layer. The durable defences in most markets are speed, proprietary data, customer relationships, switching costs, integrations and brand — assets a competitor cannot copy from a pitch deck.
Support them contractually: sensible terms with customers, exclusivity or first-refusal arrangements where appropriate, well-drafted supplier agreements, and restrictive covenants tailored to key staff. Combine that with the registered rights above and you have a defensible position, which is the realistic goal — not secrecy.
Key points
- Ideas as such are not protected — expression, brand, inventions and confidence are.
- Confidentiality law protects ideas where copyright cannot, if you take reasonable steps.
- Contractor and agency work needs a written assignment to the company.
- Trade mark registration is usually the highest-return early protection.
- Any public disclosure before a patent filing can destroy novelty.
- Execution assets — data, relationships, speed — do most of the defensive work.
Frequently asked questions
- Can I copyright an idea?
- No. Copyright protects the recorded expression of an idea — the code, the document, the design — not the underlying concept. Two people can lawfully build competing products from the same idea.
- Should I file a patent before I launch?
- If the invention is patentable and detectability in competitor products makes enforcement realistic, file before any public disclosure. Otherwise the cost and timescale often outweigh the benefit for early-stage software businesses.
- Will investors sign an NDA?
- Most institutional investors will not. Stage your disclosure instead and keep genuinely novel technical detail out of early materials.
- What if someone copies my product?
- Take advice quickly and gather evidence. Depending on the facts there may be claims in copyright, database right, breach of confidence, trade mark infringement or passing off. Early action strengthens the options available.