What is a vulnerable data subject?
A vulnerable data subject is someone who may lack the ability, confidence or capacity to fully understand or exercise their data protection rights. As a result, they may be more susceptible to harm, exploitation, intrusive data processing, or coercion into consenting to processing activities they do not fully understand.
Examples of vulnerable data subjects include:
- Children
- Patients involved with clinical trials who may not fully understand how their data will be used
- Individuals with disabilities, mental health conditions, or cognitive impairment
- Elderly individuals who may struggle to understand emerging technologies or data processing methods
- Victims of abuse, trafficking, or other crimes
- Asylum seekers
A common theme often exists: a power imbalance. Where that imbalance is present, additional safeguards should be implemented to ensure individuals are properly protected and supported.
This does not mean that everyone within these groups lacks understanding of data protection. Rather, organisations must ensure appropriate measures are in place to prevent vulnerable individuals from falling through the cracks and suffering harm.
What industries are more likely to process data from vulnerable data subjects?
Certain sectors are more likely to handle information relating to vulnerable data subjects, including:
- Care homes
- Schools, and education settings
- Law enforcement
- Hospitals and healthcare providers
- Clinical or research organisations processing non-anonymised data
However, any organisation may process information relating to vulnerable individuals, whether intentionally or inadvertently. This is why vulnerability should always be considered during:
- Due diligence on new systems
- Implementation of internal processes
- Data sharing activities
- Procurement exercises
- Rish assessments and DPIAs
Importantly, the UK GDPR is not intended to act as a barrier to safeguarding or responsible data sharing. Instead, it provides a framework that enables organisations to process information lawfully and in the best interest of the individual.
Protecting vulnerable data subjects
Promote effective and secure data sharing
Clear structures, and secure information sharing is critical, particularly where safeguarding is involved.
Good practice includes:
- Using standardised and easy-to-understand data formats
- Defined approved sharing methods, platforms and trusted contacts
- Applying password protections, encryption, and authentication controls when transferring data
- Ensuring data shared between organisations is accurate, relevant, and timely
Implement robust controls and security measures
Organisations should ensure appropriate technical and organisational controls are in place to protect sensitive information.
Key measures include:
- Access controls
Apply the principle of least privilege so staff only access information necessary for their role. - Secure systems
Implement encryption, multi-factor authentication, and staff awareness measures to reduce security risks. - Data Minimisation
Only collect, retain and share information that is genuinely necessary. - Accurate record keeping
Maintaining factual and up-to-date records is especially important in safeguarding environments. Inaccurate or outdated information can have serious consequences, particularly in healthcare and care settings where medication or treatment updates may directly affect wellbeing.
Strengthen internal governance and awareness
Strong governance frameworks help organisations demonstrate accountability and reduce risk.
This includes:
- Conducting Data Protection Impact Assessments (DPIAs) for high-risk processing activities
- Maintaining clear and transparent privacy notices and internal policies
- Providing regular staff training to address knowledge gaps and improve confidence
- Implementing detailed retention schedules and documented procedures
Organisations should also aim to foster an open culture of accountability. Staff should feel comfortable raising concerns, reporting data breaches, or asking questions about data protection without fear of criticism.
A strong culture of openness often leads to stronger safeguarding outcomes.
Sharing information without consent
There are circumstances where organisations may lawfully share information without obtaining consent from the individual.
However, any sharing must still be lawful, necessary, proportionate, and appropriately documented.
Identify a valid legal basis for sharing
Public task
This applies where an organisation is carrying out a task in the public interest or exercising official authority set out in law.
Although commonly associated with public authorities, it can also apply to private organisations carrying out statutory functions.
Example:
Private care homes may share information with local authorities or the NHS under duties arising from the Care Act 2014, particularly in relation to safeguarding responsibilities. This would not extend to any business operations outside of this legislative purpose.
Legal obligation
Certain organisations are legally required to provide specific information in defined circumstances.
For example:
- Schools and care providers may have statutory reporting obligations
- Organisations may be required to respond to subject access requests under Section 45 of the Data Protection Act 2018
Where disclosure could create a safeguarding risk, organisations should carefully assess whether exemptions apply before releasing information.
Vital interests
Information may be shared without consent where doing so is necessary to protect someone’s life or prevent serious harm.
This often applies in emergency situations involving healthcare providers or emergency services.
Legitimate interest
Legitimate interest may allow organisations to process personal data where necessary for their own interests or those of a third party, provided these interests do not override the rights and freedoms of the individual.
This is assessed via a balancing test, however, the Data (Use and Access) Act 2025, sets out defined recognised legitimate interests that remove the need for a balancing test in certain circumstances, including safeguarding vulnerable individuals and sharing information with public authorities carrying out public tasks.
Special category data considerations
Where special category data is processed – such as health information commonly used within care settings – organisations must identify both:
- A lawful basis under Article 6 UK GDPR, and
- An additional condition for processing under Article 9 UK GDPR
Relevant Article 9 conditions may include:
- Explicit consent
- Vital interests
- Health or social care purposes
- Reasons of substantial public interest
- Public health purposes
Care providers will commonly rely on health and social care purposes, substantial public interest conditions linked to legislation such as the Care Act 2014, or vital interests where immediate protection is required.
Ensuring information sharing is necessary and proportionate
Before sharing personal data, organisations should assess:
- Why the information is being shared
- Whether the same objective could be achieved using less personal data
- The risks associated with sharing
Whether all recipients genuinely require access Unnecessary recipients and broad distribution lists should always be avoided.
The Care Act reinforces the importance that individuals receive the right support at the right time, while data protection legislation ensures that sharing remains proportionate and justified.
Securely sharing information
When sharing sensitive information, organisations should use secure and approved methods.
Examples include:
- Encrypted transfer platforms such as Egress
- Password-protected documents
- Virtual Private Networks (VPNs) to protect remote communications
- Hypertext Transfer Protocol Secure (HTTPS) secured websites when entering sensitive information
- Approve and verified contacts for all external sharing activities
Recording data sharing decisions
All information sharing should be documented internally.
Records should include
- What information was shared
- Who it was shared with
- The legal basis relied upon
- Any safeguarding or risk considerations
- The transfer method used
Where appropriate, organisations should also inform the individual – or their representatives – about how and why their information has been shared.
Summary
Vulnerable data subjects are individuals who may struggle to fully understand or exercise their data protection rights due to factors such as age, health, disability or power imbalances.
Organisations must recognise these vulnerabilities and implement enhanced safeguards to reduce risk and prevent harm. This includes:
- Strong security controls
- Effective governance frameworks
- Clear and lawful data sharing processes
- Regular staff training
- Accountability and transparency throughout the organisation
While information can sometimes be shared without consent, this must always be lawful, necessary, and proportionate.
Ultimately, the UK GDPR supports responsible data use by ensuring that the rights, dignity, and wellbeing of vulnerable individuals remain central to all processing activities.
Recommended actions for good governance:
- Identify vulnerability early
- Apply stronger access controls
- Embed data minimisation principles
- Strengthen secure data sharing practices
- Standardise data sharing procedures
- Conduct DPIAs for high-risk processing
- Train staff regularly
- Maintain accurate, up-to-date records
- Document data sharing decisions clearly
- Use appropriate legal bases confidently
- Promote transparency and accountability
- Foster a positive speak-up culture
How NormCyber Can Help
At NormCyber, we understand that protecting vulnerable individuals requires more than simply meeting compliance obligations. Our Data Protection Consultancy services help organisations build practical, defensible, and people-focused data protection frameworks that support both regulatory compliance and effective safeguarding. From conducting DPIAs and reviewing data sharing practices to strengthening governance, staff awareness, and security controls, we work closely with organisations across healthcare, education, and care sectors to ensure sensitive information is handled lawfully, securely, and with the wellbeing of individuals at the centre of every decision.
To learn more about how Norm can support your organisation with data protection, governance, and safeguarding compliance, visit our Data Protection Services page.
