Your most valuable asset may be the one you must show strangers to close a deal. Ocean Tomo’s 2020 study estimated that intangible assets, including patents, software, brands and trade secrets, account for about 90 percent of the market value of S&P 500 companies. Yet fundraising rounds and acquisitions require founders to open those assets to investors, bankers and rival bidders, often within weeks. This article is for founders, general counsel, CFOs and corporate development teams preparing to raise capital, sell or buy a business. It explains which IP is most exposed during due diligence, how to disclose in stages, which contractual and technical safeguards matter, and how to read data room reviews so that your choice of platform strengthens rather than weakens your position.
Why Intellectual Property Is Most Vulnerable During a Deal
Diligence is built on disclosure. Buyers want source code architecture, customer contracts, formulae, pricing models and employee agreements. Each document you share creates a copy outside your control.
The Risk Is Not Only Theft
Leakage rarely looks like espionage. More often, a junior analyst forwards a file to a colleague, a bidder who walks away keeps notes, or a shared link is never switched off. Trade secrets are protected only while the owner takes reasonable steps to keep them secret. Careless handling can therefore weaken your legal position even if nobody acts in bad faith.
A well-known illustration is the dispute between Waymo and Uber. Waymo alleged that a former engineer downloaded thousands of confidential files before leaving to found a self-driving truck start-up, which Uber later acquired. The case settled in 2018 with Uber granting Waymo equity reported at around USD 245 million. The episode showed buyers how much liability can ride on what an acquired team brings with it, and it showed sellers how costly weak file controls can become.
The Cost of Getting It Wrong
IBM’s 2024 Cost of a Data Breach report put the global average breach cost at USD 4.88 million. For a company mid-raise, direct costs are only part of the damage. A leak can derail valuations, hand competitors a roadmap, or give a counterparty grounds to renegotiate.
Know What You Are Protecting Before You Share It
Begin with an inventory. Most companies cannot list their IP accurately until a buyer asks.
Typical categories include:
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Registered rights: patents, trade marks, designs and domain names
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Copyright in software, content and marketing assets
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Trade secrets: algorithms, formulae, supplier terms and customer data
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Licences in and out, including open-source components
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Employee and contractor assignments confirming the company owns what staff created
This last category is the most overlooked. If a contractor wrote core code without a written assignment, ownership may be unclear, and buyers will discount accordingly. Fix these gaps before the process starts.
Next, classify each item by sensitivity. A trade mark registration is public; a proprietary pricing algorithm is not. Classification drives how and when you disclose.
Staged Disclosure: Share Only What Each Stage Requires
The safest data is data nobody has seen yet. Release information in tiers that match the bidder’s seriousness.
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Teaser stage. Share only public or high-level information, such as market position and registered IP lists. Require a non-disclosure agreement (NDA) before anything more.
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Preliminary diligence. Provide summaries and redacted contracts. Replace customer names with codes and hide pricing.
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Confirmatory diligence. Open full contracts, technical documentation and employee agreements to a shortlisted buyer who has signed an exclusivity agreement.
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Highly sensitive material. Release source code, formulae or clinical data only to a “clean team” of named advisers, sometimes with reviewers viewing but never downloading.
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Pre-signing. Disclose remaining items against specific, documented requests, logging each one.
Clean Teams and Competitor Bidders
When a bidder competes with you, competition law adds another layer. Sharing pricing or customer-level data with a rival before completion can raise concerns under competition rules. A clean team restricts access to external lawyers and advisers who report only conclusions, not raw data, to the business.
Contractual Safeguards That Actually Work
Technology cannot replace a well-drafted agreement. Prioritise the following:
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NDAs with specific definitions. Define confidential information broadly, include derivative notes and analysis, and set a realistic term. Trade secrets often warrant indefinite protection.
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Non-solicitation clauses covering employees and key customers.
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Return-or-destroy obligations with written certification when a bidder withdraws.
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Residuals clauses. Resist language that lets recipients use information “retained in unaided memory”, which can undermine protection.
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Named recipients. Limit each bidder to a defined list of individuals, and require them to bind their own advisers.
Your lawyers should also confirm that the NDA applies to financing sources, not only trade buyers, since investors often share material with co-investors.
Technical Controls and What Data Room Reviews Reveal
Email attachments and general-purpose cloud folders are poor tools for diligence. Purpose-built virtual data rooms provide permission layers, activity tracking and revocable access. But platforms differ widely, so evaluation matters. Careful reading of data room reviews helps you separate marketing claims from day-to-day performance.
What to Look for in Data Room Reviews
Focus on feedback about the features that protect IP rather than on interface polish:
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Granular permissions by user, group and document, including view-only and no-print settings
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Dynamic watermarking that stamps the viewer’s name and timestamp on every page
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Fence view or screen-capture protection for source code and designs
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Detailed audit logs showing who viewed, downloaded or printed each file, and for how long
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Instant revocation, allowing access to be removed even after a file has been opened
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Security certifications, such as ISO 27001, and clear data residency terms
Treat reviews critically. Prefer detailed, recent comments from deal professionals over generic star ratings, and look for patterns in how vendors handle support during live transactions, since problems emerge at midnight before a signing, not during demos. Independent comparison sites and peer recommendations from your law firm or investment bank add useful balance.
Using Activity Analytics Strategically
Logs are not only a security tool. When a bidder suddenly spends hours in your patent folder, you learn where their interest lies. When one never opens the technical documents, their intent may be less serious than claimed. Many sellers use these signals to prioritise negotiations while spotting unusual behaviour, such as large downloads at odd hours.
Preparing Your Own Team
Even the strongest platform fails if the people using it are unprepared. Before the room opens, hold a short briefing for everyone with upload rights. Explain which folders each bidder may see, why no one should answer diligence questions by phone or email outside the agreed channel, and who approves every response. Appoint one person to review uploads for accidental inclusions, such as hidden spreadsheet tabs, tracked changes or metadata that reveal internal comments. These small habits prevent the most common leaks, and they cost nothing.
Post-Deal and Failed-Deal Hygiene
Protection does not end at signing, and failed processes carry as much risk as successful ones. Within days of closing or withdrawal:
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Revoke all outstanding access and archive the room’s logs.
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Collect return-or-destroy certificates from every non-successful bidder.
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Review which documents were most viewed and consider whether any trade secret needs added protection, such as updated access policies.
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Brief your team on what was shared with whom, in case a later dispute arises.
Buyers should apply the same discipline: restrict diligence material to the deal team, keep it separate from product development, and delete it when no longer needed to avoid later claims of contamination.
Special Considerations for Fundraising Rounds
Early-stage fundraising differs from a full sale in one important way: you may share information with dozens of investors, most of whom will never invest. Pitch decks travel quickly between funds and angel networks, so assume anything you send could be forwarded. Keep the first deck free of proprietary detail, and hold technical material until an investor issues a term sheet. Many venture investors will not sign NDAs at the first meeting, so the practical defence is selective disclosure rather than legal paperwork. Once a term sheet is on the table, move diligence into a controlled room and ask the lead investor to confirm which co-investors will receive access.
Conclusion
Fundraising and M&A force a trade-off between transparency and protection, but the two are not opposites. Companies that inventory their IP, disclose in stages, back their NDAs with precise terms and run diligence inside a secure platform give buyers confidence while keeping control. When selecting that platform, take time to study data room reviews, concentrating on permissions, logging and real-world support during live deals. A few weeks of preparation before the process begins can protect the assets that give your business its value long after the transaction is complete.