Cybersecurity Hardening

Cybersecurity Hardening for Embedded Systems

Secure Your Embedded Devices from Day One

Today’s connected devices face growing threats — from IP theft and data breaches to firmware tampering and supply chain attacks. Whether you develop automotive, industrial, medical, or consumer-grade electronics, hardening your system against cyber risks is no longer optional.

At Promwad, we provide embedded cybersecurity engineering services to help you secure your devices across the full lifecycle — from initial design to post-deployment support. Our approach is tailored to your industry standards and regulatory landscape.

Our Cybersecurity Hardening Services

We offer a full suite of services to protect your embedded systems:

Secure Boot and Root of Trust

 

  • Hardware-based Secure Boot chains
  • ARM TrustZone, TPM, HSM, and Secure Elements
  • Key provisioning and anti-cloning protection

 

Encrypted Firmware and OTA Updates

 

  • AES-256/GCM firmware encryption
  • Secure key management and rotation
  • Failsafe OTA update workflows with rollback support

 

Runtime Protection and Isolation

 

  • MPU/MPMMU configuration for memory segmentation
  • Stack overflow detection and runtime integrity checks
  • Application sandboxing (e.g., OP-TEE, SELinux)

 

Embedded Device Identity and Authentication

 

  • X.509 certificates and mutual TLS
  • Secure device provisioning at scale
  • Unique hardware-bound credentials

 

Threat Modelling and Risk Assessment

 

  • STRIDE, DREAD, and PASTA methodologies
  • Industry-specific threat surface analysis
  • Security posture audits for existing firmware

 

Regulatory and Standards Compliance

 

  • ETSI EN 303 645 (consumer IoT)
  • NIST 8259A (US federal IoT security)
  • ISO 21434 (automotive), IEC 62443 (industrial), IEC 62304 (medical)

 

Secure your embedded device with Promwad!

When Do You Need Cybersecurity Hardening?

We adapt hardening techniques to your architecture — whether it’s ARM Cortex-M, RISC-V, or complex SoCs running embedded Linux. Explore the use cases we support:

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Automotive ECUs and gateways

Security risks assessed: Remote code injection, CAN bus spoofing

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Medical wearables and health monitors

Security risks assessed: Patient data leaks, unauthorised updates

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Industrial controllers and IIoT devices

Security risks assessed: Factory malware, PLC hijacking, data exfiltration

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Embedded Linux or RTOS-based systems

Security risks assessed: Root exploits, privilege escalation, firmware backdoors

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Smart home and consumer IoT

Security risks assessed: Privacy violations, botnet participation

Our Methodology

Our team integrates security engineering into your development flow — from early prototyping to release.

Requirements Definition

Align security goals with industry threats and compliance needs

System Architecture Review

Evaluate trust boundaries, interfaces, and components

Diverse expertise

Implementation & Integration

Secure Boot, crypto, and isolation measures tailored to your hardware

Verification & Penetration Testing

Black box and white box tests, fuzzing, and protocol analysis

Lifecycle Security Planning

Keys, credentials, OTA policy, update rollback and monitoring

Why Choose Promwad?

We work as part of your engineering team — ensuring compliance, protection, and long-term security posture for every release.

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Cross-industry experience


From IEC 61508 PLCs to ISO 21434 automotive gateways

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Trusted technologies


PSA Certified, TUF, WolfSSL, mbedTLS

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Flexible delivery models


Security consulting, full integration, or long-term support

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Partnerships with leading vendors


Collaboration with chip vendors and security labs across the EU

Ready to Build Secure Embedded Products?

With cyberattacks on embedded devices rising, proactive defense is critical. Promwad offers practical, standards-aligned solutions to harden embedded systems across industries and architectures.

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Let’s secure your firmware, data, and infrastructure — starting now.

Drop us a line about your project! We will contact you today or the next business day. All submitted information will be kept confidential.