Sentyron. Trusted to protect what matters most.
Fox Crypto becomes Sentyron.
Same mission, new name,
together with CR group.
Why the rebrand?
From Fox Crypto to Sentyron: trusted to protect what matters most
Since 2003, we have operated as Fox Crypto, a pioneer in high-assurance security, with roots in Philips Crypto and a long history as part of Fox-IT. In 2025, following our acquisition by Swedish CR Group, we are starting a new chapter. With our new name, Sentyron, we are reaffirming and strengthening our mission: to protect governments, defence and critical infrastructure.
What does the name Sentyron mean?
Name
The name Sentyron is derived from sentinel (guardian, protector) and tyron (strength, reliability). Together, it represents strong and trustworthy protection of what truly matters.
Logo
The new logo is built around a geometric ‘S’ made of two interlocking shapes that form a shield at the center, which underlines our emphasis on security.
Colours
A charcoal-black-to-forest-green gradient with mint-green accents symbolizes the shift from hidden threats to clear protection and agile progress. The white, near-black, forest-green and mint palette feels solid, modern and future-focused.
Our vision
In a world where geopolitical tensions are increasing and digital threats undermine democracies and sovereignty, Sentyron stands as an essential protector of a free and secure society.
Secure and reliable communication, as well as the continuity of vital processes, are crucial for trust in both technology and society. Sentyron is on the frontline to protect that trust.
By 2030, we aim to be the leading provider of secure communications to vital organizations in the Netherlands, while expanding our reach into the rest of Europe.
Our mission
We protect the vital organizations of our society with uncompromising security technology, ensuring the reliable protection of state secrets, defense systems, and critical processes – today, tomorrow and in the future.
Our strength is built on three pillars
Uncompromising
security
We deliver technology at the highest certification levels (EAL7+, NATO Top Secret, NL-NCSA). For organizations where failure is not an option, our solutions ensure that critical information and processes stay secure under all circumstances.
Dutch roots,
EU-based
Founded in Delft and firmly rooted in Europe, we build sovereign high assurance security solutions. This strengthens digital sovereignty and provides trusted European alternatives for governments and vital organizations.
Customer-centric innovation
Security challenges evolve daily. We continuously invest in post-quantum cryptography, cloud security and AI, anticipating tomorrow’s threats and keeping our solutions ready for the future.
Our core values
Hacker mindset
We think ahead and dare to pioneer. We embrace the future with courage, constantly testing, questioning and challenging the status quo. Our solutions push the standards, reflecting our innovative spirit.
Trustworthiness
We do what we say and are transparent about our capabilities. Our commitment to integrity is unwavering, as trust is the foundation of everything we do. In a world full of digital threats, we put security first.
Dutch craftmanship
Craftsmanship is our foundation. From agile design and development to realization, we can balance security and user-friendliness. The Dutch are known for their simplicity and functionality in product development. We build robust, future-proof systems based on the highest security standards, so our customers can operate with peace of mind.
Collaboration for impact
We believe real progress comes from partnership and synergy. By joining forces, sharing knowledge, and building innovative solutions together, we create an impact that reaches beyond individuals, aiming for a more secure society, today and tomorrow.
Entrepreneurship
We see opportunities in obstacles, taking initiative, being bold and embracing calculated risks. Entrepreneurs challenge the norm, adapt quickly, and are driven by purpose, using profit to grow, make an impact, and push boundaries. We have the mindset to create value for our customers and company.
Our history
is our legacy
Building on decades of cryptographic expertise. Sentyron’s story is backed by a rich history in secure communications technology, tracing back to the early days of Dutch cryptography.
What's changing - and what's staying the same
What stays the same
- Team & technology
- Mission & commitment
- Focus on high assurance
What's changing
- Name
- Logo & branding
- Website & communications
Frequently Asked Questions
Why is Fox Crypto changing its name?
After more than twenty years as a trusted leader in high-assurance security, we are taking the next step in our journey. Our new name, Sentyron, reflects who we are today and where we are going: protecting classified information and vital processes for government organisations, defence and critical infrastructure. When Fox Crypto was sold to the Swedish CR Group, it was agreed with the NCC Group that the company would operate under a new name, to avoid confusion or conflict with Fox-IT.
What does Sentyron stand for?
The name Sentyron is derived from ‘sentinel’ (guardian, protector) and ‘tyron’ (a strong, modern sound that conveys strength and reliability). Together, it reflects exactly what we stand for: uncompromising security, trusted to protect what matters most.
Why was the name Sentyron chosen?
Sentyron was chosen for its uniqueness and memorability. It conveys a strong and reliable protector, perfectly aligned with our mission to secure critical communications and processes with uncompromising security technology.
Will the products and services change with the rebrand?
No, our core products and services remain the same. The rebranding to Sentyron is about aligning our identity with our vision for the future of secure communication and digital protection.
Why is the name change important for the future?
As the digital landscape evolves, we want to position ourselves as an innovative leader in European high-assurance security. The new name, Sentyron, underscores this commitment. The world is changing, and democracies and vital infrastructures must be protected against growing digital threats.
How does Sentyron differ from Fox Crypto?
Sentyron is the same company, with the same people and expertise.
How can I stay updated about the rebranding?
We will share updates on our website, through newsletters, via our LinkedIn channel, and by email. If you would like to receive regular updates, please subscribe to our newsletter.
How will the rebranding impact my relationship with Sentyron?
There is no change to your relationship with us. We continue to offer the same high level of service and security solutions. The only difference is our new name and visual identity, which better represent our evolving mission and ambitions.
What steps is Sentyron taking to ensure continuity in service?
We are committed to providing uninterrupted service to our clients. All existing contracts, projects, and relationships will continue as planned, without any disruption.
Will the rebranding affect any contracts or agreements?
No, there will be no impact on any current contracts or agreements. Our legal entity remains unchanged, and all existing terms and conditions continue to apply. Our Chamber of Commerce number will remain unchanged.
How can I contact Sentyron for support or inquiries?
You can continue to reach out to us through our existing contact channels. We will provide further updates once our new website and email addresses are live.
What can I expect from Sentyron in the future?
Our focus remains on strengthening and expanding our trusted products: certified data diodes, secure mobile communications, and advanced cryptographic systems. We will continue to improve these solutions to meet new security standards and the needs of governments, defence organisations, and critical infrastructure across Europe.
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