Chief Information Security Officer (CISO) as a Service
Expert, tailored support for all your IT security and compliance objectives.
Flexible support for your IT security and compliance
Ready for more control over data protection without hiring a permanent expert? Our specialists take the monitoring of privacy management off your hands and ensure your organization meets the requirements of your partners, customers, and the GDPR. Not a one-time effort, but a specialist who always thinks ahead and keeps your privacy continuously in order.
✓“We must demonstrably comply with the GDPR, but lack the in-house expertise.â€
✓“Our customers expect proof that their personal data is safe with us.â€
✓“If there is a data breach, I want the certainty that we know what needs to be done.â€
Find out why 500+ Companies trust Nestor Security for IT security and compliance
Why a Chief Information Security Officer
Why an external Chief Information Security Officer matters
Growing organizations need privacy governance that scales with their risks, customers, and obligations, but rarely a full-time Chief Information Security Officer.
Demonstrably GDPR compliant
Build demonstrable GDPR compliance — without hiring a full-time Chief Information Security Officer.
Executive-level management
Privacy strategy and ownership where it belongs: in the boardroom, not ad hoc.
Ready for customer audits
Demonstrate to partners and potential customers that your privacy and processes are in order.
Immediate action on data breaches
A single point of contact who acts and communicates with the authorities when every hour counts.
The threat landscape
Most growing companies are insufficiently prepared against advanced privacy risks
Without specialized guidance on privacy, security teams fall behind on risk management, GDPR compliance, and data breach preparedness. An external Chief Information Security Officer provides this missing guidance and delivers board-level privacy strategy without the cost of a full-time expert.
No fixed governance on privacy
Strategic choices are made spontaneously, without ownership at the executive level.
Constant compliance pressure
Requirements from the GDPR, ISO 27001, NIS2, and ISO 27701 are piling up quickly.
Increasing risk of ransomware
Attacks target insufficiently prepared SMEs and often go unnoticed for a long time.
Customer privacy requirements
Major partners and potential clients are demanding privacy audits that you are not yet ready for.
No plan for data breaches
In a data breach, every hour counts and improvisation falls short.
Limited internal knowledge
Your team is capable, but is spread across too many priorities.
The solution
How CISO as a Service from Nestor Security works
A dedicated Chief Information Security Officer by your side — in three clear steps, from assessment to continuous assurance.
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Step 1
Prioritize goals and map processes
Your CISO is collaborating with your key stakeholders to prioritize core data protection and compliance goals. By mapping processes and reviewing existing data processing agreements, your CISO is planning how these will be updated and improved with Standard Contractual Clauses.
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Step 2
Assess, draft, and embed privacy by design
Once your CISO is sufficiently familiar with your organization, they will draw up international transfer agreements together with the employees involved and conduct data protection impact assessments (DPIAs), thereby embedding privacy by design into your change processes.
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Step 3
Implementing and continuously optimizing procedures
Your CISO fulfills this role by drafting and implementing new procedures and processes where necessary—for example, for data subject rights and incident management. These procedures are continuously optimized so that your privacy requirements are met on an ongoing basis rather than at just a single point in time.
Our services
What an external Chief Information Security Officer means for you
Data protection assessments
We conduct DPIAs and risk assessments with you and determine which data flows require the most attention.
Continuous compliance monitoring
Your CISO continuously monitors whether your processing activities, policies, and measures continue to comply with the GDPR.
Contact point for regulators
In case of questions or incidents, your CISO will maintain contact with the Dutch Data Protection Authority on your behalf.
Training for your employees
Practical awareness and procedural training to ensure your team handles personal data with care.
Communication with your customers
Clear explanation and documentation with which you can demonstrate to customers and partners that your privacy is in order.
Privacy policy and data breach plans
Workable policy and a data breach response plan that is ready before anything goes wrong.
Benefits
Benefits of CISO as a Service
Reduce repetitive work with automation
We provide a CISO who automates repetitive work together with you. If you want to automate a process, you simply create a ticket via our portal, after which the CISO can respond faster than via email.
Long-term compliance
Your CISO advises you on new privacy regulations, ensuring your organization continues to comply with standards and laws in the long term.
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Flexible payment model
You only pay for the hours you actually schedule with your CISO. This gives you complete control over costs and allows you to easily scale the effort up or down as needed.
Drafting and reviewing legal documents
Your CISO assists you with key legal documents: from partner contracts such as DPAs and JCAs to DPIAs and deletion drafts that prevent the improper processing of personal data.
Working with supervisors
In the event of unexpected incidents such as a data breach, we deploy additional capacity, liaise with the authorities on your behalf, and ensure your organization stays on track.
Success stories
Don't just take it from us
You are in good company with Nestor.
Contact
Meet Nestor Security
Your questions answered
FAQs
With which sectors does Nestor Security work?
The GDPR applies equally to all businesses and organizations, although certain parts of the regulation—such as processing children's data and profiling individuals—may not apply to your business. Having worked in both the public and private sectors, we are confident that our CISOs can support you with privacy compliance in any situation.
What is a Chief Information Security Officer?
A Chief Information Security Officer is someone appointed by an organization to oversee compliance with legislation and principles regarding data protection. The CISO may be responsible for data management, including its collection, processing, use, and disclosure. This also includes ensuring that information is processed in accordance with the Data Protection Act 2018 (DPA).
What is an external Chief Information Security Officer?
An external Chief Information Security Officer (CISO) helps protect the data your organization processes about customers, suppliers, and employees by following recognized best practices and collaborating with the regulator on your behalf.
When do I need a Chief Information Security Officer?
Under the GDPR, appointing a Data Protection Officer is mandatory in specific situations. This applies, among others, to government agencies, organizations that monitor individuals on a large scale, and companies that process large amounts of special (sensitive) personal data. Even when it is not strictly mandatory, many organizations still choose to appoint a CISO to strengthen their data protection. As soon as data processing becomes more complex or business growth brings new compliance risks, a dedicated expert helps to ensure accountability and reduce the likelihood of issues with the supervisory authority.
What should a Chief Information Security Officer be familiar with?
The Chief Information Security Officer needs to know what data is collected, how this is done, and where the data goes after collection. In addition, the CISO must be aware of any specific rules that apply within the organization for processing or using this type of information.
Is outsourcing the role of a Chief Information Security Officer permitted under the GDPR?
Yes, outsourcing a CISO is expressly permitted under the GDPR. Article 37 stipulates that organizations can appoint a CISO on the basis of a service contract, which means the role can be fulfilled by an external party rather than an internal employee.