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Software Copyright: FSEK Protection No. 5846

25 Şubat 2026 Intellectual Property, Trademark and Patent Law 3 dk okuma 16 görüntülenme Son güncelleme: 8 Mayıs 2026

Law on Intellectual and Artistic Works No. 5846 (FSEK) protects software (computer program) in the category of "scientific and literary work". There is no registration requirement; Protection begins as soon as the work is created.

Protected Element — Source Code and Entire

  • Source code: Code written by humans (Python, JavaScript, C++, etc.).
  • Compiled code: Made executable.
  • Preparation material: Algorithm, flowchart, documentation.
  • Screen design/UI:If it has creativity.
  • Database structure: Under certain conditions.

Unprotected Element

  • Idea of algorithm (under mathematical rule).
  • Programming language.
  • General interface conventions.
  • Expressions, not ideas, are preserved (idea-expression dichotomy).

Financial Rights (FSEK art.21-25)

  • Right of reproduction.
  • Right to disseminate.
  • Right to representation.
  • Right of public transmission.
  • Right to process (derivative).
  • These rights can be transferred by contract.

Moral Rights (FSEK art.14-17)

  • Authority to present the work to the public.
  • Authority to state name.
  • Authority to prevent the work from being changed.
  • Protection of ownership of the work.
  • Moral rights are non-transferable
  • .

Within the Framework of the Employment Contract

  • FSEK article 18: The financial rights of the software developed by the worker within the scope of his duties belong to the employer.
  • Moral rights still belong to the worker.
  • Special arrangements can be made in the contract.
  • In the "Side project" claim, the burden of proof is on the worker.

Open Source Licenses

  • MIT/BSD: Very broad permission (citation sufficient).
  • Apache 2.0: Contains patent clause.
  • GPL/AGPL: Derivative work must also be open source (copyleft).
  • Creative Commons: Not preferred for software.

In Case of Violation

  • Legal action:Seizure, suspension of publication, compensation.
  • Criminal case: FSEK art.71-72 — 1-5 years imprisonment and judicial fine.
  • Injunction: Removal of content at an early stage.
  • Administrative process: Complaint to application stores (Apple App Store, Google Play).

Supreme Court 11th HD — Established Approach

11. HD requires "similarity analysis" to be carried out by a technical expert in software copyright violations; Pure functional similarity is insufficient, expression duplication is sought at the source code level. Whether similar software made through "reverse engineering" is considered a violation or not depends on the concrete case.

Proof of Infringement

  • Date of creation of the work (commit history, e-mail).
  • Obtaining the infringing work (download, licensed purchase).
  • Expert report — code comparison.
  • Market impact, loss of revenue.

Practical Tips

  • Commit history (git) should be kept meticulously during the development phase.
  • License compliance check for open source libraries used.
  • Financial rights transfer clause in employment contracts.
  • Warning letter via notary when you detect a violation.
  • Selection of experts for the expert report.
  • Software copyright files require technical expertise. Intellectual property and IT law lawyer recommended.

    Telif bildirimi This content and all related Q&A texts are protected under Turkish Copyright Law No. 5846. Unauthorized copying, reproduction, publication, adaptation, bulk extraction, or commercial use is prohibited; legal and criminal remedies are reserved in case of infringement.

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