Employee Confidentiality Agreement Mexico (Acuerdo de Confidencialidad para Empleados)

An Employee Confidentiality Agreement Mexico (Acuerdo de Confidencialidad para Empleados) is a formal written agreement between a Mexican employer and a worker establishing the worker's obligation to protect the employer's confidential information, trade secrets, and proprietary business data, governed principally by Article 134, Fraction XIII of the Ley Federal del Trabajo (LFT), which imposes on all workers the duty to keep absolute reserve (guardar escrupulosamente los secretos técnicos, comerciales y de fabricación) of the technical, commercial, and manufacturing secrets of the enterprise and of all confidential personal matters of which they become aware by virtue of their work, with full understanding that disclosure of this information may cause harm to the company. Article 134 Fraction XIII LFT establishes the statutory basis for the worker's duty of professional secrecy (secreto profesional) and operates independently of any written agreement — but a formal Acuerdo de Confidencialidad strengthens the legal position of the employer by precisely defining the scope of confidential information, the obligations of the worker, the consequences of breach, and the remedies available.

The protection of trade secrets and confidential business information in Mexico is governed by the Ley Federal de Protección a la Propiedad Industrial (LFPPI), published in the Diario Oficial de la Federación on 1 July 2020 and effective from the same date, replacing the former Ley de la Propiedad Industrial (LPI). Article 82 of the LFPPI defines a secreto industrial (trade secret) as information that has economic or commercial value that is not in the public domain, is kept confidential by the owner through reasonable measures to protect it, and whose disclosure would give unfair advantage to a competitor. Article 86 LFPPI establishes that misappropriation of a trade secret — including disclosure by a current or former employee who obtained access to it through the employment relationship — constitutes an infringement (infracción administrativa) subject to sanctions by the Instituto Mexicano de la Propiedad Industrial (IMPI), and may also constitute an unfair commercial practice (competencia desleal) under Article 309 LFPPI.

The criminal dimension of trade secret misappropriation is addressed in Article 223 of the Código Penal Federal (CPF), which criminalizes the unauthorized disclosure or use of industrial secrets by persons who obtained access to them through their employment, contracting relationship, or professional services. Penalties under Article 223 CPF include imprisonment of two to six years and fines of up to 10,000 times the general daily minimum wage. The Fiscalía General de la República (FGR) — federal prosecutor's office — has jurisdiction over industrial secret crimes under the CPF.

The Acuerdo de Confidencialidad for employees in Mexico operates within a unique legal constraint: Article 5 of the Constitución Política de los Estados Unidos Mexicanos guarantees freedom of occupation (libertad de trabajo), and Article 5 LFT prohibits contractual provisions that restrict a worker's freedom to choose their occupation after the employment ends. As a consequence, post-employment non-compete clauses (cláusulas de no competencia) are generally unenforceable in Mexico — a critical distinction from many other jurisdictions. The Employee Confidentiality Agreement must therefore focus on protecting specific confidential information and trade secrets rather than broadly restricting the worker's future employment, to remain within the constitutional and LFT limitations. Properly drafted confidentiality obligations covering specific categories of information — customer lists, pricing models, formulas, manufacturing processes, software source code — are enforceable under Article 134 Fraction XIII LFT and the LFPPI even after the employment relationship ends, while general non-compete clauses are not.

Intellectual property created by workers in the course of employment is addressed in Articles 84 through 91 of the Ley Federal del Derecho de Autor (LFDA) and Articles 163 through 165 of the LFPPI. Under Article 163 LFPPI, inventions developed by workers using the employer's means, knowledge, and facilities belong to the employer — the Acuerdo de Confidencialidad should include an IP assignment clause to reinforce this statutory provision and address works and innovations not clearly covered by the statutory employer-ownership rules. Patents and trademarks are registered before the IMPI (Instituto Mexicano de la Propiedad Industrial), while copyrights are registered before INDAUTOR (Instituto Nacional del Derecho de Autor) — both institutions play important roles in enforcing IP rights arising from the employment relationship.

An Employee Confidentiality Agreement Mexico is needed at the commencement of the employment relationship — executed as part of the onboarding package simultaneously with the employment contract (Contrato de Trabajo under Article 25 LFT) — for any position in which the worker will have access to confidential business information, trade secrets, customer data, proprietary technology, financial information, or strategic business plans.

The agreement is particularly critical for positions in research and development (investigación y desarrollo), product engineering and design, sales with access to customer lists and pricing strategies, finance and accounting with access to unreported financial results, marketing with access to campaign strategies and market research, IT and software development with access to source code and system architectures, and senior management with access to board-level strategic information and SAT-sensitive financial data.

An Acuerdo de Confidencialidad is required when the employer intends to share trade secrets (secretos industriales under Article 82 LFPPI) with the worker — the LFPPI's trade secret protection framework requires that the owner demonstrate that reasonable measures were taken to maintain the confidentiality of the information. A signed employee confidentiality agreement is the primary evidence of these reasonable measures, and without it, the employer may find it difficult to establish trade secret status in IMPI administrative proceedings or criminal proceedings under Article 223 CPF before the Fiscalía General de la República.

The agreement is needed when employees will have access to client confidential information under a separate NDA between the employer and its clients — the employee confidentiality agreement creates a sub-obligation that extends the employer's client NDA obligations to the individual workers handling that information, protecting the employer against vicarious liability for employee disclosures.

A revised or supplemental Acuerdo de Confidencialidad is required when an existing employee changes roles and gains access to a significantly expanded set of confidential information — for example, an individual contributor promoted to a management position with strategic business access. At this transition point, the new agreement should be executed with adequate consideration (which in the Mexican employment context may be the promotion itself or additional benefits) to be enforceable as a binding contractual commitment beyond the statutory duty under Article 134 Fraction XIII LFT.

The agreement is also needed when a worker is about to leave employment — a separation-stage reminder of confidentiality obligations reinforcing the post-employment confidentiality duties under Article 134 Fraction XIII LFT and the LFPPI, documenting the return of all confidential materials and revoking all system access credentials, is recommended practice before any worker departure to reduce the risk of trade secret misappropriation and potential prosecution under Article 223 CPF.

A valid Employee Confidentiality Agreement Mexico under Ley Federal del Trabajo Article 134 Fraction XIII and the Ley Federal de Protección a la Propiedad Industrial (LFPPI) must include the following essential provisions to be enforceable and effective as a trade secret protection instrument.

Party Identification: Full legal name, RFC (Registro Federal de Contribuyentes), CURP (Clave Única de Registro de Población), and domicile of both the employer (patrón) and the worker (trabajador). For corporate employers, the RFC of the legal entity, the name of the legal representative (representante legal with poder notarial granted before a Notario Público), and the Registro Público de Comercio inscription number. The agreement should cross-reference the worker's employment contract number and start date.

Definition of Confidential Information: A precise and detailed definition of what constitutes confidential information — avoiding overly broad definitions that could be challenged as attempting to restrict the worker's general industry knowledge. Protected categories should include: trade secrets (secretos industriales) as defined in Article 82 LFPPI — formulas, processes, methods, systems, know-how; commercial trade secrets (secretos comerciales) — customer lists, pricing structures, sales strategies, distribution channel data; financial information — unreported results, projections, cost structures, margin data; technical information — source code, algorithms, designs, specifications, prototypes; and strategic information — business plans, merger and acquisition targets, R&D roadmaps. The definition should expressly exclude information already in the public domain (dominio público), information the worker can demonstrate they possessed before employment, and information independently developed by the worker without use of confidential materials.

Scope of Confidentiality Obligations: Specific obligations of the worker — to use confidential information only for the employer's authorized purposes; to not disclose confidential information to unauthorized third parties; to implement reasonable security measures to protect confidential materials; to notify the employer immediately upon discovering any unauthorized disclosure or breach; and to return all confidential materials upon termination of employment. The obligations should track the statutory duty under Article 134 Fraction XIII LFT and extend them contractually to create a clear evidentiary basis for civil and criminal proceedings under the LFPPI and Código Penal Federal.

Duration of Obligations: The confidentiality obligations during the employment relationship are indefinite — Article 134 Fraction XIII LFT imposes this duty for the entire duration of the employment. Post-employment obligations protecting genuinely protectable trade secrets are valid for a reasonable period — typically three to five years after termination, consistent with the five-year statute of limitations under Article 213 LFPPI for trade secret infringement claims before IMPI.

Intellectual Property Assignment: Under Articles 163 through 165 LFPPI and Articles 84 through 91 of the Ley Federal del Derecho de Autor (LFDA), inventions and creative works developed by workers using the employer's resources belong to the employer. The agreement should include an express assignment clause confirming employer ownership of all IP created within the scope of employment and requiring the worker to cooperate in registration procedures before IMPI and INDAUTOR.

Remedies and Governing Law: Statement that breach of the agreement may result in: civil liability under the Código Civil Federal for damages (daños y perjuicios); administrative sanctions before IMPI under Articles 212 and 213 LFPPI for trade secret misappropriation; criminal prosecution under Article 223 CPF for unauthorized disclosure of industrial secrets; and dismissal for justified cause under Article 47 Fraction IX LFT. Disputes are subject to mandatory conciliation at the Centro Federal de Conciliación y Registro Laboral (CFCRL) before proceeding to the competent Tribunal Laboral.

Data Protection Integration: A provision cross-referencing the employer's Aviso de Privacidad para Empleados under Article 15 of the Ley Federal de Protección de Datos Personales en Posesión de los Particulares (LFPDPPP), confirming that personal data processed in connection with this agreement is handled in accordance with the employer's LFPDPPP-compliant data protection practices, and that the worker's ARCO rights (access, rectification, cancellation, and objection) are exercisable through the Instituto Nacional de Transparencia, Acceso a la Información y Protección de Datos Personales (INAI).

Forms-legal.com provides this Employee Confidentiality Agreement Mexico template to help employers establish enforceable trade secret protection under LFT Article 134 Fraction XIII and the LFPPI. Every agreement should be reviewed by a licenciado en derecho laboral experienced in IMPI proceedings and the Código Penal Federal.