Counter-Surveillance Sweep Services
A counter-surveillance sweep is appropriate when the concern is not a specific device — but the possibility of being observed, monitored, or tracked.
Unlike basic bug checks, counter-surveillance focuses on patterns, access, anomalies, and intent, not just hardware detection.
Our counter-surveillance sweeps are designed to establish whether surveillance is possible, probable, or unlikely, and what that means in real-world terms.
What a counter-surveillance sweep addresses
Counter-surveillance is about answering three questions:
Could surveillance exist in this environment?
How would it realistically be conducted?
Does anything present represent actionable risk?
To do this, we assess for:
Indicators of covert observation or monitoring
Environmental anomalies inconsistent with normal use
Surveillance-enabling infrastructure or access
Tracking or location awareness risks
Insider-assisted or opportunistic placement scenarios
This approach prioritises intent and feasibility, not assumptions.
How this differs from a bug sweep or TSCM sweep
A counter-surveillance sweep is behaviour- and context-led.
A bug sweep looks for specific listening or tracking devices
A TSCM sweep assesses devices, infrastructure, and hybrid risks
A counter-surveillance sweep asks whether surveillance activity could realistically be occurring — and why
It is often the starting point when concerns are vague, emerging, or evolving.
When a counter-surveillance sweep is appropriate
Clients typically request counter-surveillance when:
They feel observed but cannot identify a cause
Information appears to be known unexpectedly
Behaviour or timing of third parties raises concern
There has been recent conflict, litigation, or media exposure
Insider access cannot be ruled out
Travel, meetings, or decisions carry heightened risk
If the concern is situational, not technical, this is the correct service.
Environments commonly assessed
Counter-surveillance sweeps are conducted in:
Executive offices and meeting spaces
Residential properties
Legal consultation rooms
Temporary accommodation (hotels, serviced apartments)
Vehicles and travel environments
Project-specific or short-term locations
Each assessment is scoped to how the environment is actually used, not just how it appears.
How our counter-surveillance process works
Contextual briefing
What prompted concern
Who has had access
What decisions or activity are sensitive
Environmental assessment
Visual and structural review
Access and placement feasibility
Behavioural and pattern analysis
Targeted technical checks
RF and signal assessment (where appropriate)
Tracking and proximity risk indicators
Correlation and validation
Elimination of benign explanations
Risk grading based on evidence
Clear explanation
Whether surveillance is likely, possible, or unlikely
What matters next
What does not require action
The outcome is clarity, not escalation.
Who this service is for
✔ Executives and decision-makers
✔ Legal and dispute-involved individuals
✔ Journalists and investigators
✔ High-net-worth individuals
✔ Organisations facing uncertainty or pressure
Not suitable for:
Consumer reassurance checks
Curiosity-driven requests
Situations requiring only a device scan
This service is about situational awareness and confidence.
Relationship to other services
A counter-surveillance sweep may lead to:
A TSCM sweep if technical risk is identified
A bug sweep if device-specific indicators emerge
No further action if concerns are ruled out
We advise proportionately — not defensively.
Related services
You may also wish to review:
Discuss a counter-surveillance assessment
If you’re concerned about covert monitoring but unsure what’s required, we can discuss your situation confidentially and advise appropriately.
We do not use sales teams or call centres.
If you believe a bug sweep or TSCM inspection may be appropriate, contact us directly to discuss your situation confidentially.
Email: enquiries@cyberdec.co.uk