Workplace Technology Surveillance: Rights and Ethical Limits in Spain in 2026

In today’s digital era, the integration of technology into the workplace has radically transformed the way we work and, as a result, has raised new challenges around employee privacy and rights. Workplace technology surveillance, an increasingly widespread practice at Spanish companies, refers to the use of tools and systems to monitor workers’ activities. This monitoring can range from tracking the use of electronic devices and email to geolocation, access control, and, in more advanced cases, biometric data analysis or social media monitoring. These technologies are constantly evolving, and what looks like an innovative practice today could be standard tomorrow. That’s why it’s crucial to understand the legal and ethical framework governing these practices, especially with an eye on 2026.

The line between companies’ legitimate need to protect their assets, ensure productivity, and comply with security regulations, and employees’ fundamental right to privacy and digital disconnection, is becoming increasingly blurred. In Spain, this tension is managed through a legal framework that seeks to balance both interests, though not without controversy and debate. Implementing technology surveillance systems is no trivial matter; it involves deep considerations about trust, corporate culture, and worker well-being. Transparency becomes a fundamental pillar: employees must be clearly and explicitly informed about any surveillance system in place, as well as the purpose and scope of that monitoring. Without this transparency, any surveillance measure could be deemed unlawful and violate workers’ rights.

The goal of this article is to break down the most relevant aspects of workplace technology surveillance in Spain, analyzing the current legal framework, workers’ inalienable rights, and the ethical limits companies must observe. We will look at future trends for 2026, anticipating how legislation and case law could evolve to keep pace with a constantly changing technology landscape. Understanding these dynamics is essential both for employers seeking to operate legally and ethically and for employees who want to protect their privacy and rights in the digital workplace.

The Current Legal Framework for Workplace Technology Surveillance in Spain

The regulation of workplace technology surveillance in Spain rests on several legal pillars, the most important being the Spanish Constitution, the Workers’ Statute, the Organic Law on Personal Data Protection and the Guarantee of Digital Rights (LOPDGDD), and the European Union’s General Data Protection Regulation (GDPR). Together, these laws establish a robust framework that seeks to protect workers’ dignity and fundamental rights against employer prerogatives.

The Spanish Constitution and Fundamental Rights

Articles 18 (the right to honor, to personal and family privacy, and to one’s own image) and 20 (freedom of expression) of the Spanish Constitution lay the groundwork for protecting privacy in every sphere, including the workplace. Any employer surveillance measure must respect these fundamental rights, which means they cannot be violated arbitrarily or disproportionately. Case law from the Constitutional Court has been key to interpreting the scope of these rights in the context of employment relationships, establishing criteria of proportionality and necessity.

The Workers’ Statute: Articles 20 bis and 21

The Workers’ Statute (ET) is the core law governing employment relationships in Spain. Article 20 bis of the ET, introduced by the LOPDGDD, is particularly important. This article recognizes workers’ right to privacy when using digital devices provided by the employer, as well as the right to digital disconnection. It states that employers may access content resulting from workers’ use of company-provided digital tools, but always with respect for fundamental rights and in accordance with the criteria of proportionality and necessity. In addition, workers must have been informed in advance about the rules for using these devices and about any monitoring measures that may be implemented. A lack of clear, explicit information invalidates any type of surveillance.

Article 21 of the ET, for its part, allows employers to adopt whatever monitoring and control measures they deem appropriate to verify that workers are fulfilling their job duties and obligations, provided that the worker’s dignity is respected and, where applicable, data protection legislation is followed. This is the article that has traditionally underpinned the employer’s power of control, but its interpretation has evolved significantly with the arrival of new technologies and growing privacy awareness.

The LOPDGDD and the GDPR: The Backbone of Data Protection

Organic Law 3/2018 of December 5 on the Protection of Personal Data and the Guarantee of Digital Rights (LOPDGDD) adapts the European General Data Protection Regulation (GDPR) to the Spanish legal system. Together, these laws are the foundation of personal data protection and, by extension, of workplace technology surveillance. They establish fundamental principles such as lawfulness, fairness, and transparency in data processing; purpose limitation; data minimization; accuracy; storage limitation; integrity and confidentiality; and accountability.

Articles 87 through 90 of the LOPDGDD specifically address digital rights in the workplace:

• The right to privacy in the use of digital devices at work (Art. 87): Reiterates the need to establish criteria for the use of digital tools and to inform workers about their use and any possible monitoring measures.
• The right to digital disconnection (Art. 88): Recognizes workers’ right not to respond to work communications outside working hours, promoting work-life balance. Company policies must define how this right is exercised.
• The right to privacy regarding video surveillance and sound recording in the workplace (Art. 89): Limits the use of cameras to verifying compliance with job duties and security monitoring, and prohibits their use in rest or recreation areas. Companies must provide clear, visible notice that these systems exist.
• The right to privacy regarding the use of geolocation systems at work (Art. 90): Allows geolocation systems to be used for purposes related to workforce management, security, or task assignment, but always with prior, explicit notice to workers and in keeping with the principle of proportionality.

Failure to comply with these regulations can lead to significant penalties for companies, as well as the possibility that unlawfully obtained evidence will be ruled inadmissible in court.

Employee Rights Regarding Technology Surveillance

Employees in Spain enjoy a number of fundamental rights that act as a counterweight to the employer’s power of control, especially when it comes to workplace technology surveillance. Knowing and understanding these rights is essential to ensuring a fair balance in employment relationships.

The Right to Information and Transparency

One of the most important rights is the right to be informed. The company is required to give clear, explicit, advance notice before implementing any technology surveillance system. This information must include:

• Purpose of the monitoring: Why is the surveillance being implemented? (e.g., security, productivity monitoring, regulatory compliance).
• Scope of the monitoring: What kind of data is collected? Which activities are monitored? (e.g., emails, web browsing, location).
• Data retention period: How long will the collected data be stored?
• Workers’ rights: Information on how to exercise the rights of access, rectification, erasure, restriction of processing, portability, and objection.

Failure to provide this detailed advance information can invalidate evidence obtained through surveillance and lead to penalties for the company. A generic clause in the employment contract is not enough; the information must be specific and accessible.

The Right to Privacy

The right to privacy is a fundamental pillar. This means surveillance cannot be indiscriminate or disproportionate. Employers cannot monitor areas or activities that belong strictly to the worker’s personal sphere. For example, video surveillance is prohibited in locker rooms, restrooms, and break areas not directly related to job performance. Likewise, access to private (personal) communications made using company-provided tools but not strictly for work is a sensitive area that requires thorough analysis and, generally, a very strong justification.

The Right to Digital Disconnection

The right to digital disconnection, enshrined in Article 88 of the LOPDGDD, ensures that workers are not required to respond to work communications outside their working hours or during their rest periods. This right seeks to protect employees’ personal and family time, fostering a culture that respects the boundaries between work and private life. Companies must establish internal policies governing this right, including how it is exercised and training and awareness initiatives on its importance.

The Right to Personal Data Protection

Workers have the right to have their personal data collected through workplace technology surveillance processed in accordance with the principles of the GDPR and the LOPDGDD. This includes:

• Access: Requesting information about the personal data the company holds about them.
• Rectification: Correcting inaccurate data.
• Erasure (right to be forgotten): Requesting the deletion of their data when it is no longer needed for the purpose for which it was collected.
• Restriction of processing: Limiting the use of their data in certain circumstances.
• Portability: Receiving their data in a structured, commonly used format and transferring it to another controller.
• Objection: Objecting to the processing of their data on legitimate grounds.

In addition, the data must be handled with the utmost security, with appropriate technical and organizational measures in place to protect it from unauthorized access, loss, or destruction.

Ethical Limits and Proportionality in Employer Surveillance

Beyond strictly legal considerations, workplace technology surveillance raises important ethical dilemmas. Companies must not only comply with the law but also operate according to principles of respect, trust, and good faith. The key to ethical and legally valid surveillance lies in the principle of proportionality, which has been developed extensively in Spanish and European case law.

The Principle of Proportionality: A Three-Part Test

For a surveillance measure to be considered proportionate, it must pass a three-part test:

1. Suitability test: The measure must be appropriate for achieving the legitimate aim pursued. In other words, it must be capable of achieving the company’s objective (e.g., ensuring security, monitoring productivity). If the measure is not effective for its purpose, it is not suitable.
2. Necessity test: The measure must be the least intrusive way to achieve the aim. If there are other alternatives that are less harmful to the worker’s rights and achieve the same objective, the more intrusive measure will not be necessary. For example, if random email checks are sufficient, constant monitoring could be unnecessary.
3. Proportionality test in the strict sense: The benefits the measure brings to the company’s interests must outweigh the sacrifices or harm it imposes on the worker’s rights. This is a balancing of interests, in which the right to privacy cannot be excessively sacrificed for a business interest that could be met with less intrusion.

This three-part test is fundamental and must be applied rigorously before any surveillance system is implemented. The burden of proof lies with the company, which must justify the suitability, necessity, and proportionality of its measures.

Additional Ethical Considerations

• Trust and Corporate Culture: Excessive surveillance, or surveillance perceived as invasive, can erode trust between employers and employees, harming workplace climate, morale, and productivity. Companies should foster a culture of trust and transparency in which surveillance is seen as a legitimate tool rather than an instrument of absolute control.
• Bias and Discrimination: The algorithms and AI systems used in surveillance can contain inherent biases, which could lead to discriminatory practices. It is crucial to audit these systems to ensure they are fair and equitable, avoiding discrimination based on gender, race, age, or other protected characteristics.
• Mental Health and Stress: The feeling of being constantly watched can cause stress and anxiety and affect workers’ mental health. Companies must be aware of this impact and seek a balance that doesn’t compromise their employees’ well-being.
• Use of Sensitive Data: Collecting biometric data (fingerprints, facial recognition) or health data through surveillance devices is especially sensitive and requires even closer scrutiny, with very strong justifications and the worker’s explicit consent, except in very limited and regulated cases.
• Purpose of Processing: Data collected through surveillance must be used exclusively for the purposes for which it was collected and communicated to workers. Any later use for a different purpose without new justification and notice would be unlawful.

Business ethics in workplace technology surveillance is not just a matter of regulatory compliance but of building sustainable, respectful employment relationships in which technology is a tool for improvement rather than coercion.

Future Trends and Challenges for 2026

The landscape of workplace technology surveillance is constantly evolving, driven by technological advances and changes in how we work. By 2026, we can anticipate several trends and challenges that will shape how employee monitoring is regulated and practiced in Spain.

Artificial Intelligence and Predictive Analytics

Artificial intelligence (AI) and machine learning are transforming surveillance. Companies are already using AI to analyze behavior patterns, predict staff turnover, identify security risks, and even assess productivity. By 2026, these tools will become more sophisticated, raising new questions about:

• Algorithmic Transparency: How do we ensure algorithms are fair and non-discriminatory? The opacity of some AI algorithms is a significant challenge.
• “Micro-surveillance”: AI’s ability to analyze data at a granular level could lead to “micro-surveillance” that monitors every action an employee takes, increasing pressure and reducing autonomy.
• Automated Decisions: Using AI to make decisions about performance, promotions, or even terminations will make it necessary to guarantee the right to an explanation and to human intervention.

Remote Work and Hybrid Models

The rise of remote work and hybrid models has accelerated the adoption of workplace technology surveillance tools to monitor employees’ activity remotely. By 2026, as these models become the norm, regulations will need to be adapted to specifically address the particularities of surveillance in off-site environments. This includes:

• Limits in the Home: Clearly defining the limits of surveillance when the workplace is the employee’s home, respecting their personal and family privacy.
• Collaboration Tools: Collaboration and communication platforms (e.g., Teams, Slack) can generate large volumes of data that may be monitored, which calls for clear policies on their use and on privacy.
• Stronger Digital Disconnection: The need to guarantee digital disconnection becomes even more critical with remote work, where the boundaries between personal and professional life can easily blur.

Biometrics and Wearable Technologies

Biometrics (facial recognition, fingerprints, voice) and wearable technologies (smartwatches, fitness trackers) are gaining ground in the workplace for access control, time tracking, and even health and wellness monitoring. By 2026, their use could expand, sparking debate over:

• Explicit Consent: The sensitive nature of biometric data requires the worker’s free and informed consent, which must be revocable.
• Data Security: Protecting this sensitive data is paramount, since a breach could have very serious consequences for individuals’ privacy and security.
• Specific Purpose: The use of biometric data must have a very specific purpose and be strictly justified, avoiding mass or indiscriminate collection.

Stronger Regulations and Case Law

By 2026, current regulations, especially the LOPDGDD and the Workers’ Statute, are very likely to be supplemented or reinterpreted in light of new technologies and emerging challenges. Case law from the Supreme Court and the Court of Justice of the European Union will continue to set key precedents clarifying the scope of workers’ rights with respect to workplace technology surveillance. We could see:

• Guidelines and Codes of Conduct: Specific guidance from the Spanish Data Protection Agency (AEPD) or industry codes of conduct addressing particular surveillance practices.
• Regulation of AI in Employment: Possible specific legislation at the European or national level on the use of AI in the workplace, including mechanisms to ensure transparency and non-discrimination.
• A Stronger Right to Disconnect: Possible mechanisms to make the right to digital disconnection more effective, perhaps with clearer penalties for noncompliance.

Recommendations for Companies and Employees

Given the complex landscape of workplace technology surveillance, both companies and employees should take a proactive approach to ensuring legal compliance and protecting rights.

For Companies:

1. Develop Clear, Transparent Policies: It is essential to have detailed internal policies on the use of company technology (devices, email, internet) and any surveillance measures. These policies must be accessible, understandable, and communicated to all employees before any measure is implemented.
2. Apply the Principle of Proportionality: Before implementing any surveillance system, conduct a rigorous analysis of suitability, necessity, and proportionality. Document this analysis to justify the measure.
3. Data Minimization: Collect only the data strictly necessary for the legitimate purpose pursued. Avoid mass or indiscriminate collection of information.
4. Training and Awareness: Train employees on device use policies and the implications of surveillance. Also train managers and HR staff on the legal and ethical framework.
5. Regular Audits: Audit surveillance systems regularly to make sure they remain compliant and are not being used abusively.
6. Data Protection Impact Assessment (DPIA): For high-risk surveillance systems, a DPIA is mandatory under the GDPR and helps identify and mitigate privacy risks.
7. Channels for Questions and Complaints: Establish clear channels so employees can raise questions or complaints about surveillance practices.
8. Promote a Culture of Trust: Seek a balance between control and trust, fostering a work environment where employees feel respected and valued.

For Employees:

1. Know Your Rights: Familiarize yourself with your workplace rights regarding privacy, digital disconnection, and data protection. Being informed is the first line of defense.
2. Read Company Policies: Pay attention to device use policies and to surveillance clauses in your employment contract or employee handbook.
3. Keep Personal and Work Use Separate: Avoid using company devices and email accounts for personal matters, since they may be subject to legitimate monitoring.
4. Exercise Your Right to Disconnect: Use your right not to respond to work communications outside working hours, and let the company know if you have any difficulty exercising it.
5. Request Information: If you have questions about your company’s surveillance practices, you can ask what data is collected, for what purpose, and how it is handled.
6. File Complaints: If you believe your rights have been violated, you can file a complaint with the company, with worker representatives (works council or union delegates), or ultimately with the Spanish Data Protection Agency (AEPD) or the labor courts.
7. Be Careful with Social Media: Be aware that public information on social media can be monitored by the company, although there are very strict limits on its use for employment purposes.

Conclusion

Workplace technology surveillance is an unavoidable reality in the modern business environment, and it will continue to grow more sophisticated heading into 2026. However, this technological progress must always go hand in hand with deep respect for workers’ fundamental rights and rigorous application of ethical and legal principles. In Spain, the current regulatory framework, which combines the Constitution, the Workers’ Statute, and data protection laws, provides a solid foundation for protecting employees’ privacy and dignity.

The challenge for companies lies in implementing surveillance measures that are truly necessary, proportionate, and transparent, avoiding any form of excessive or discriminatory control. The key is to build an organizational culture based on trust and dialogue, where technology is a tool for improving efficiency and security without undermining workers’ well-being and autonomy. Transparency and advance notice are essential to legitimizing any monitoring practice, ensuring employees know the scope and purpose of the surveillance.

For employees, knowing their rights is their best line of defense. Knowing when and how the company can monitor their activity, and understanding the limits of that control, allows them to protect their privacy and exercise their right to digital disconnection. Collaboration between employers and employees, through workers’ legal representatives, is essential to establishing balanced, fair policies tailored to the particularities of each sector and company.

Looking ahead to 2026, advances in artificial intelligence, remote work, and biometric technologies will continue to test the limits of workplace technology surveillance. Regulations are likely to be adapted and refined, and case law will keep setting important precedents. Staying informed about these changes will be crucial for everyone in the world of work, ensuring that technological progress does not compromise the fundamental values of respect and privacy in the workplace.