TSCM Sweep Services

A TSCM sweep is a structured counter-surveillance process used to identify covert monitoring risks within physical and hybrid environments.

Unlike informal “bug checks”, a professional TSCM sweep evaluates devices, access, infrastructure, and behaviour to determine whether surveillance is present — and whether it presents real-world risk.

Our TSCM sweeps are conducted discreetly, lawfully, and with evidential clarity.

What a TSCM sweep is designed to detect

A properly conducted TSCM sweep assesses for:

• Covert audio surveillance (RF, GSM, LTE, IP-based)

• Hidden or disguised video devices

• GPS, cellular, and BLE tracking devices

• Network-connected or power-line-enabled surveillance

• Residual devices from previous access or occupancy

• Indicators of insider-assisted placement

Detection is validated and contextualised, not simply flagged.

What makes a TSCM sweep different from a “bug sweep”

A bug sweep focuses narrowly on listening or tracking devices.

A TSCM sweep goes further by assessing:

• How a device could have been placed

• What access would have been required

• Whether infrastructure supports covert monitoring

• Whether findings represent real operational risk

This distinction matters when decisions have legal, financial, or personal consequences.

When a TSCM sweep is appropriate

Clients typically request a TSCM sweep when:

• Sensitive discussions or negotiations are planned

• Confidential information appears to be leaking

• A property, office, or vehicle has changed hands

• There are concerns about insider access

• Legal, media, or reputational exposure is increasing

• High-risk travel or meetings are imminent

If the question is “could surveillance be present?”, a TSCM sweep is the correct response.

Environments commonly covered

Our TSCM sweeps are conducted in a range of environments, including:

• Executive offices and boardrooms

• Residential properties

• Legal and consultation spaces

• Temporary accommodation (hotels, serviced apartments)

• Vehicles and mobile environments

• Sensitive project or planning spaces

Each sweep is scoped to the specific access history and threat context of the location.

How our TSCM sweep process works

Every sweep follows a structured methodology:

• Pre-sweep context

  • Threat model

  • Access history

  • Use of space

• Physical & RF assessment

  • Visual and structural inspection

  • RF spectrum analysis

  • Signal and power anomaly detection

• Digital & hybrid assessment

  • Network-enabled artefacts

  • Persistent or covert connectivity indicators

• Validation

  • Elimination of false positives

  • Functional assessment of anomalies

• Clear reporting

  • What was found

  • What was ruled out

  • What action (if any) is required

Results are explained in plain language, suitable for executive or legal decision-making.

Who this service is for

✔ Executives and senior leadership
✔ Legal teams and dispute cases
✔ High-net-worth individuals
✔ Journalists and investigators
✔ Organisations handling sensitive information

Not suitable for:

• Consumer reassurance checks

• DIY scan validation

• Curiosity-based requests

A TSCM sweep is about risk clarity, not comfort.

Related services

You may also want to review:

• TSCM & Bug Sweep Services (UK-wide)

• TSCM Services in London

• Bug Sweep Services in London

• Counter-Surveillance Sweeps

Discuss a professional TSCM sweep

If you require discreet, evidence-based counter-surveillance, we can discuss scope and suitability confidentially.

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