Home/Services/Offensive Security/IoT Security Testing

Offensive Security

IoT Security Testing

Hardware, firmware and communication testing for connected devices and embedded systems — plus the cloud and mobile companion apps that control them.

Request this test → See our methodology

Overview

Test the whole product, not just the device.

Connected devices combine hardware, firmware, network protocols and supporting apps — and a weakness in any layer can compromise the whole product. Debug interfaces, unsigned firmware and insecure protocols are recurring issues.

We assess the complete IoT ecosystem, from physical and firmware analysis through communication protocols to the cloud services and mobile apps that manage the device, mapping findings to the OWASP IoT guidance.

What we test

Focus areas of the assessment.

The core areas we examine in a iot security testing engagement.

Firmware analysis

Extraction and review of firmware for secrets, flaws and weak updates.

Hardware & debug interfaces

Exposed UART/JTAG and physical access leading to device compromise.

Communication protocols

Wireless and wired protocols, encryption and authentication between components.

Cloud & companion apps

The backend services and mobile apps that control the device.

Authentication & updates

Device identity, credentials and the integrity of update mechanisms.

Who needs this

Who benefits most

Who this engagement is designed to support.

Connected-product makersDevices shipped to customers.

Medical device manufacturersPatient safety and data.

Industrial / OT operatorsConnected sensors and controllers.

Smart-home / consumer IoTLarge device fleets.

Automotive & telematicsEmbedded connectivity.

Hardware + cloud buildersMulti-layer attack surface.

Regulatory drivers

Why this is required

Connected devices combine hardware, firmware, communications and cloud, multiplying both the attack surface and the obligations that apply; testing the full device chain is expected wherever devices touch payments, health or personal data.

Sector & product regulations

Connected medical, payment and consumer devices carry security and testing expectations specific to their sector.

ISO/IEC 27001:2022

Devices within the ISMS scope are subject to its technical, supplier and configuration controls.

DPDPA & GDPR

Require safeguards for personal data collected or transmitted by connected devices.

How we work

A disciplined testing methodology.

A repeatable, standards-based process that balances depth with operational safety.

Scoping & device intake

Receiving devices and mapping the hardware, firmware and ecosystem.

Firmware & hardware analysis

Extracting and analysing firmware, interfaces and stored secrets.

Communication & protocol testing

Testing wireless and network protocols between device, app and cloud.

Application & cloud-interface testing

Assessing companion apps and cloud back-ends for weaknesses.

Exploitation & impact validation

Confirming exploitable issues across the device chain with evidence.

Reporting & retest

Risk-rated findings spanning hardware to cloud, with a retest.

What you receive

Deliverables built for every audience.

Executive summaryOverview of device-ecosystem risk.
Device-to-cloud findingsIssues across firmware, protocols, app and cloud, with CVSS.
Hardware & firmware evidenceProof from device and firmware analysis.
Remediation guidanceFixes spanning device, communications and back-end.
Retest report & attestationVerification of fixes with an attestation letter.

Standards & frameworks

This assessment is aligned to recognised industry methodologies.

OWASP IoT Top 10OWASP FSTMPTESNIST SP 800-115

Checklist

Are you ready? A quick checklist

What to have in place before we begin.

Representative device units (and spares)

Firmware images if available

Companion app and cloud scope

Hardware test permissions (invasive?)

Debug-interface details

Communication protocols documented

Update-mechanism details

Remediation owner identified

FAQ

Common questions

Do you need physical devices?

Yes — we need representative units, and ideally spares, since some hardware-level testing can be invasive. We agree quantities during scoping.

Can you test our firmware update process?

Yes. Update integrity is a core focus — we check whether firmware is signed, encrypted and validated to prevent malicious updates.

Do you cover the companion mobile app?

We do. The mobile app and cloud backend are part of the assessment, since they often hold the keys to the device.