# IoT & OT/ICS Security

> Connected devices, SCADA, PLC and industrial control systems.

Operational technology and connected devices were rarely designed for internet-era threats. We assess IoT devices and OT/ICS environments - firmware, protocols, segmentation and physical interfaces - with a safety-first methodology.

## Outcomes

- Firmware and hardware interface analysis
- Industrial protocol and segmentation testing
- Device and cloud/companion-app review
- Safety-conscious OT methodology

## Process

01. **Scope** - Inventory devices, protocols and safety constraints.
02. **Analyze** - Firmware, hardware, protocol and app analysis.
03. **Test** - Controlled testing within agreed safety limits.
04. **Report** - Findings with risk ratings and remediation.

## Deliverables

- IoT/OT assessment report
- Risk-rated findings
- Architecture hardening roadmap

## Standards

IEC 62443, OWASP IoT Top 10, MITRE ATT&CK for ICS


## Overview

Operational Technology (OT/SCADA) and connected IoT devices require specialized, safety-conscious auditing. Standard active network scanners can easily crash critical PLCs and ICS devices.

Our safety-first OT security assessments audit firmware, hardware interfaces, industrial protocol segmentation (Modbus, BACnet), and device-to-cloud communications without interrupting production.


## What we cover

### Firmware Decompilation
Analyzing extracted device firmware for hardcoded keys, backdoors, and logic flaws.

### Hardware Interfaces
Probing JTAG, UART, and SPI pins on physical device boards to extract memory.

### Industrial Protocol Safety
Reviewing Modbus, Profinet, and SCADA control traffic for encryption and authentication gaps.

### Zone Segment Controls
Verifying Purdue Model network segmentation between enterprise IT and OT control zones.


## FAQ

**Is OT testing safe for production?**
We use a safety-first methodology, prefer test/lab environments, and agree strict limits before any production interaction.

---
Request this service: https://a5cyber.in/contact?topic=IoT%20%26%20OT%2FICS%20Security · All services: https://a5cyber.in/services/