Our article addresses the protection of trade secrets and know-how under Turkish law, explaining why there is no dedicated statute, how protection is built through unfair competition provisions, the available actions, criminal liability, confidentiality agreements and the contrast with the EU Trade Secrets Directive.
A company's most valuable asset is often invisible on its balance sheet. The fine settings of production processes, formulations accumulated over years, customer lists and pricing models, supplier terms, product plans not yet released; none of these is recorded in a patent register or secured by a title deed, yet once they reach a competitor the company's advantage evaporates overnight. The question of how such information is protected in law meets an unusual answer under Turkish law; there is no dedicated statute governing trade secrets. Protection is built indirectly, principally through the unfair competition provisions of the Commercial Code. This does not make protection impossible, but it makes it far more dependent on proof and on measures taken in advance. When a breach occurs, a company unable to establish that the information genuinely had the character of a secret, and that reasonable steps were taken to protect it, often finds its most valuable asset unprotected. This article examines trade secrets and know-how under Turkish law, the elements of protection, the unfair competition provisions, the available actions, criminal liability, contractual safeguards, the limits in the employment relationship, and the contrast with the European Union regime.
1. The Concept of a Trade Secret and Its Elements
Although Turkish legislation contains no general definition of a trade secret, doctrine and judicial practice have converged on certain elements. The first is secrecy; the information must not be generally known and must not be readily accessible. Information obtainable from public sources, generally known in the sector, or apparent from the product itself is not a trade secret. The second is economic value; the information must carry a commercial value deriving from its secrecy. In assessing whether information constitutes a trade secret, the courts look at whether it confers a competitive advantage on its holder; information without commercial value is not protected on this basis. The third is the holder's intention to keep the information secret and the reasonable measures taken to that end. This third element is decisive in practice; it is difficult to assert afterwards that information left openly accessible, with no protective measure in place, was a trade secret. Protection therefore does not begin at the moment of breach; it begins at the moment the information starts being managed as a secret.
2. Know-How and Its Relationship with Trade Secrets
Know-how denotes the body of technical and operational knowledge and experience acquired by an undertaking in the course of its activity, not protected by patent but capable of being transferred to third parties. This concept is assessed within the scope of trade secrets and is subject to the same protective regime. The choice between know-how and registered intellectual property rights is a strategic decision for undertakings. Patent protection confers an exclusive right for a fixed period in return for the disclosure of the invention to the public; once the period expires the information becomes free. Keeping information as know-how, by contrast, offers protection for an unlimited period, but that protection depends on the secret remaining secret; once the information is out, the protection ends with it. In making this choice, factors such as whether the information can be resolved by reverse engineering, the speed of imitation in the sector and the number of people with access should be assessed. Attempting to keep as a secret information that can readily be reverse engineered may mean obtaining weak protection at the price of forgoing patent protection.
3. The Legal Framework of Protection
There is no dedicated statute governing the protection of trade secrets under Turkish law. Protection is provided principally within the framework of the unfair competition provisions of the Turkish Commercial Code; alongside this, confidentiality obligations are regulated in statutes specific to particular sectors such as banking and electronic communications. The meaning of this structure is that a trade secret is safeguarded not as an absolute right but as an interest protected against unlawful conduct. Since unfair competition is a species of tort, it may be said that the basic foundation of trade secret protection is tortious liability. This indirect structure produces two consequences in practice. First, to benefit from protection one must prove both the secret character of the information and the unlawfulness of the breach; there is no presumption such as exists with registered rights. Second, the importance of contractual safeguards multiplies; confidentiality agreements become not a complement to statutory protection but, in most cases, its principal basis.
4. The Unfair Competition Provisions
The article of the Turkish Commercial Code exemplifying cases of unfair competition contains three important manifestations relating to trade secrets. The first is unlawfully disclosing production and business secrets; in particular, a person who evaluates or communicates to others information obtained secretly and without permission, or learned in some other unlawful manner, and the business secrets of the producer, has acted contrary to honesty. This provision covers not only the person who obtains the secret but also the person who uses and disseminates it. The second is inducing employees, agents or other auxiliary persons to disclose or to obtain the production and business secrets of their employers or principals. This provision renders directly liable the person who encourages a competitor's employee to transfer secrets, and in practice it is the principal basis relied upon in leaks occurring through employee transfers. The third is taking advantage of a work product belonging to third parties, such as an offer, calculation or plan, where it ought to be known that it was entrusted or supplied without authorisation.
5. The Civil Actions Available
A person whose customers, credit, professional reputation, commercial activities or other economic interests are harmed, or who faces such a danger, by reason of unfair competition may bring the actions listed in the law. The first is an action for a declaration that the act is unfair. The second is an action for prevention, seeking the cessation of a continuing or likely to be repeated breach. The third is an action for removal, seeking the elimination of the material situation resulting from the unfair competition, the correction of false or misleading statements and, where unavoidable in order to prevent the infringement, the destruction of the instruments and goods effective in committing the unfair competition. The fourth is an action for damages, where there is fault. Moral damages may also be claimed where the conditions are met. In practice the most effective instrument is often an interim injunction; where the leak is continuing, halting the use and dissemination before the substantive action concludes prevents the loss from growing. These actions are subject to limitation periods, and not missing those periods is of critical importance.
6. Criminal Liability
Breaches of trade secrets may give rise not only to civil but also to criminal liability, and this dimension substantially increases deterrence in practice. The relevant article of the Turkish Criminal Code makes it an offence to disclose information or documents having the character of a trade secret, banking secret or customer secret. The offence arises where information of this character, learned by reason of one's status or duties, is given to or disclosed to unauthorised persons. The provision also covers persons who have obtained the information unlawfully giving it to or disclosing it to unauthorised persons. The law provides for the offence to be prosecuted of the authorities' own motion in certain cases. In addition, the Turkish Commercial Code contains criminal sanctions in relation to unfair competition; certain acts relating to the disclosure of trade secrets are among the alternative forms of the offence of unfair competition, and there is a separate provision relating to the obtaining of trade secrets. In practice, pursuing the criminal and civil routes together is effective both for obtaining evidence and for creating pressure on the other party.
7. Confidentiality Agreements
The indirect and proof-dependent structure of statutory protection makes contractual safeguards the principal instrument. A confidentiality agreement is concluded before the information is shared and regulates the receiving party's obligation to keep it confidential and to use it only for the stated purpose. A well-prepared confidentiality agreement should contain the following elements. The first is the definition of confidential information; the scope must be both sufficiently broad and sufficiently specific, since definitions treating everything as confidential tend to weaken in practice. The second is the limitation of the permitted purpose; it must be written that the information will be used only for the designated transaction. The third is the determination of the circle of persons who may access the information and placing those persons under the same obligation. The fourth is the duration of the obligation; for trade secrets a duration not limited to the term of the agreement, continuing so long as the information retains its secret character, is preferable. The fifth is the obligation to return or destroy the information. The sixth is a liquidated damages clause operating on breach; since proof of loss is almost impossible, deterrence rests essentially on this provision.
8. The Decisive Role of Liquidated Damages
The fundamental obstacle facing a damages claim in a trade secret breach is proof of loss. The loss arising from a formulation or a customer list reaching a competitor can rarely be established in figures; it may be impossible to separate how much of a drop in sales is attributable to the leak and how much to market conditions. A liquidated damages clause resolves this problem at the outset; the creditor may claim the agreed sum without proving either the existence or the amount of loss. For this reason, in confidentiality agreements such a clause is not decorative but central to the protection. Certain matters require attention in drafting it. Whether it operates separately for each breach or once in aggregate must be written expressly. How calculation is to be made where the breach is continuing must be determined. It must be stated that claims for further damages are reserved; otherwise the clause may operate as a ceiling. In fixing the amount, a reasonable proportion to the interest protected should be observed.
9. The Employment Relationship and the Duty of Loyalty
The most common source of trade secret leaks is the employment relationship. While the employment contract subsists, the employee is obliged by the duty of loyalty to keep the employer's production and business secrets and to refrain from conduct harmful to the employer. This obligation arises from the law and need not separately be agreed. After the employment relationship ends the position is more complex; a clear distinction must be drawn between the employee's general professional knowledge and skill and the employer's know-how. The general competence, experience and professional craft an employee acquires while working belong to that employee, and it cannot be prevented from using them in a new position; the contrary would endanger the person's economic future. Information specific to the undertaking, concrete and secret, is by contrast outside that scope. Clarifying this distinction in advance in the contract reduces later disputes. Practical steps during the exit process matter too; closing access rights immediately, recovering devices and signing an exit acknowledgement recalling the confidentiality obligation are effective measures.
10. The Relationship with Non-Compete Undertakings
Trade secret protection and non-compete undertakings are frequently confused, yet they serve different functions and are subject to different regimes. A confidentiality obligation prohibits the disclosure and use of specified information; it does not prevent a person from practising their profession. A non-compete undertaking prohibits a person from operating in a given field and territory; it interferes directly with economic freedom. This difference is reflected in the conditions of validity; a non-compete is subject to strict limits as to duration, geographical area and field of activity, and a disproportionate undertaking may be held invalid or be limited. A confidentiality obligation is not subject to such strict limits and may be provided for much longer periods. Undertakings' strategy should therefore be to strengthen confidentiality protection rather than to overload the non-compete. In practice an employee's move to a competitor cannot always be prevented; but preventing it from using the concrete information it takes there rests on far firmer legal ground.
11. Contrast with the European Union Regime
The scattered and indirect structure of Turkish law becomes more apparent when compared with the European Union's regime. The Union's directive on the protection of undisclosed know-how and trade secrets has introduced a framework defining the trade secret directly. Alongside setting clear criteria for the definition, the directive expressly regulates the lawful means of acquisition; no infringement arises in respect of information obtained through means such as independent discovery and reverse engineering. The directive also offers a more detailed framework as regards procedural instruments such as the preservation of confidentiality during proceedings and interim measures. This last point is of great practical importance; in a trade secret action there is a risk that the secret itself will be exposed in the course of the proceedings, and bringing an action without procedural rules managing that risk may destroy the very value sought to be protected. Member States such as Germany have, in the course of alignment with the directive, enacted separate statutes on the protection of trade secrets and have reorganised the criminal sanctions within those statutes. No comparable consolidated regime yet exists under Turkish law.
12. Lawful Acquisition and Reverse Engineering
Not every acquisition of information is unlawful, and knowing where that line falls is critical both for claim and for defence. Independent discovery, that is, arriving at information through one's own work without drawing on another's secret, is lawful and constitutes no infringement. Reverse engineering, that is, examining a lawfully acquired product to resolve its structure and method of production, is as a rule likewise a legitimate means of acquisition; this is expressly stated in the European Union regime. This fact reveals the fundamental weakness of a know-how strategy; information resolvable by examining the product cannot in fact be protected, however it is characterised in law. Freedom to reverse engineer may, however, be restricted by contract; prohibitions on reverse engineering are commonly inserted into licence and supply agreements. A further distinction gains importance here; where the information was acquired within a contractual relationship and under a confidentiality obligation, its use cannot afterwards be defended on the basis of reverse engineering. Documenting the channel through which information arrived therefore becomes decisive in a dispute.
13. The Problem of Proof and Evidence Management
The real issue determining the fate of trade secret actions is proof. The claimant must establish three matters; that the information had the character of a secret, that the defendant accessed it by unlawful means or used it unlawfully, and that loss or the danger of loss arose. Each of these becomes difficult to prove where it is not supported by measures taken in advance. A protection strategy must therefore be designed for the period before the breach, not after it. The practical measures are these; classifying confidential information and marking documents with a confidentiality legend, limiting access to those who need it and keeping access records, using logging and data loss prevention tools in information systems, physical access controls, obtaining written confidentiality undertakings from employees and business partners, and recording when and with whom information was shared. These measures not only prevent leaks but also constitute the strongest evidence that the information was genuinely managed as a secret.
14. Mistakes Frequently Made in Practice
Certain mistakes are frequently repeated in the management of trade secrets. The first is assuming information is a secret without taking any protective measure; the secret character of unprotected information becomes contestable. The second is drafting the definition of confidential information in a confidentiality agreement so as to cover everything; excessively broad definitions may be read down in practice. The third is limiting the confidentiality obligation to the term of the agreement; a trade secret remains a secret after the agreement ends. The fourth is providing no liquidated damages clause or fixing it at an ineffective level; since proof of loss is difficult, the protection is in fact nullified. The fifth is failing to close access rights and recover devices on employee exit. The sixth is failing to ensure that third parties with whom information is shared place their own employees under the same obligation. The seventh is acting when a breach is detected without first gathering evidence and seeking an interim injunction. The eighth is failing to manage, when bringing an action, the risk that the secret will be exposed during the proceedings.
15. Conclusion and Practical Recommendations
Trade secrets and know-how are for most companies the most valuable yet legally the most fragile assets. The basic considerations may be summarised as follows. There is no dedicated statute on trade secrets under Turkish law; protection is built indirectly, principally through the unfair competition provisions. For information to be regarded as a trade secret it must be secret, carry economic value and confer a competitive advantage on its holder; and it is decisive that the holder has taken reasonable measures to protect it. On breach, actions for declaration, prevention, removal and damages are available, an interim injunction is a powerful instrument, and the criminal route may be pursued in parallel. Because statutory protection depends on proof, the real protection is provided by contractual instruments; confidentiality agreements must be supported by liquidated damages. In the employment relationship, the distinction between a person's general professional accumulation and information specific to the undertaking must be observed. Reverse engineering and independent discovery are lawful means of acquisition, and that fact sets the limit of any secrecy strategy. Most importantly, protection must be established before the breach; classification, access control and record-keeping both prevent leaks and constitute the strongest evidence at trial.
The protection of trade secrets is closely connected with the other fields of contract law. Our article on penalty clauses under Turkish law, which form the basis of deterrence in confidentiality breaches, and our analysis of letters of intent, memoranda of understanding and pre-contractual liability, which addresses the duty of confidentiality at the negotiation stage, address the matters connected with trade secret protection.
For advisory services on establishing trade secret and know-how protection strategies, the preparation of confidentiality agreements, unfair competition actions and the pursuit of trade secret breaches, you may contact us at info@guzeloglu.legal.