The firm
An engineering firm, not a generalist provider.
HEDYLIUM is based in Waremme and works with organisations — companies and institutions — required to secure their systems and, now, to demonstrate it.
Security is approached as an engineering discipline: understand the framework, examine the existing setup, design proportionate measures, then maintain them. Substantiated findings, documented choices, verifiable results.
The firm provides a single point of contact who follows each case end to end — not a standardised answer applied uniformly.
Method
A four-step approach, from regulation to upkeep.
- 01
Regulatory research
Establish the applicable framework and its interpretation: obligations, standards, state of the art.
- 02
Scoping
Define the perimeter, assess the risks and prioritise the relevant measures.
- 03
Implementation
Deploy the technical and organisational measures, documenting each choice.
- 04
Upkeep
Provide regular follow-up so that security does not drift from its documentation.
Domains
Areas of work
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Network & information system security
Architecture, segmentation, filtering, hardening — from design to operation.
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NIS2 / CyberFundamentals compliance
Applicability, compliance, and an evidence file that holds up to an audit.
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AI security
Risks specific to AI systems and language models, and the governance that goes with them.
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Post-quantum cryptography
Inventory of cryptographic uses, crypto-agility, preparing the transition.
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Fractional CISO
A security-officer function scaled to need.
Scope
What the firm does not do
The firm focuses on security consulting, auditing and engineering. It does not resell hardware, serve consumers, run a 24/7 monitoring centre (SOC), or provide cloud hosting.
When such needs arise, the firm helps scope them and write the requirements; their delivery is left to those whose trade it is.
Get in touch
A need to examine?
Outline it in a few lines; the firm tells you whether it can step in, and how.