GreyOps protects confidential information and decision-making at the highest level. For executives of public and private organisations, we secure rooms against eavesdropping and observation: from sweep to full shielding.
GreyOps makes hidden leakage and eavesdropping risks visible and manageable. In sensitive rooms and objects. For sensitive transactions, board decisions, security-critical assignments or specific occasions. Not least for ABRO contracts or obligations under the Dutch Cybersecurity Act.
Technical inspection of boardrooms, offices and vehicles for eavesdropping devices and unwanted signals. Performed with the latest professional measurement equipment. Reported at board level, methodologically sound.
Read more: TSCM sweeps
Design and assessment of secure rooms: from meeting rooms with elevated requirements to fully shielded environments, including organisational assurance such as procedures and awareness.
Read more: Security consultingEavesdropping is not a theoretical risk. At companies, governments and international institutions, eavesdropping devices are found in furniture, fittings, ventilation, cabling, computer systems and peripherals.
Observation equipment is evidently hard to recognise, and the period between placement and discovery (dwell time) is usually months. Detection almost never happens by chance, but through targeted examination. The strictly methodical GreyOps approach is designed to reliably detect and interpret eavesdropping devices and unwanted signals that are present. The link below sets out a selection of documented cases.
No hardware sales and no vendor interest. Our advice serves your resilience and is 100% transparent.
Doctoral-level security scientists (PhD) with years of experience in national security.
Confidentiality is not an empty slogan; it is built into every engagement from the first contact.
Our clients generally fall into three segments, joined by one common thread: information that must not leak. The reason is not always a profile or an obligation: often it is a specific process, a meeting, or a room used routinely for confidential discussion.
Organisations falling under the Dutch Cybersecurity Act/NIS2 or the ABRO, or operating in adjacent critical supply chains, required to show their resilience is in order.
Law firms, M&A advisory practices, technology, semiconductor and defence suppliers, family offices and boards engaged in confidential or strategic negotiations.
Executives, public figures, foreign delegations and research institutions, or concrete suspicions of eavesdropping, data leaks, insider risk or economic espionage.
According to the AIVD annual report 2025 (the Dutch General Intelligence and Security Service), the threat from states with offensive cyber programmes is greater than previously assessed, and the risks of economic espionage have increased.