Security for connected devices, from purchase to retirement.
Lifecycle IoT security covering device identity, network segmentation, secure updates, monitoring, incident readiness and decommissioning — aligned to recognized frameworks without overclaiming compliance.
Built for the people accountable for the outcome.
IoT Security is part of PEXIVA’s Connected Operations & IoT practice, which combines all six PEXIVA core capabilities.
Intended buyers
- CISO and security architects
- OT security and plant engineering leads
- Connected-product leaders
- Risk, compliance and audit teams
What this solves.
Shared and default credentials
Devices ship with factory passwords or one key for the whole fleet.
Flat networks
A compromised sensor can reach business systems or control networks.
No safe update path
Vulnerabilities are known but devices cannot be patched at scale.
Security ends at go-live
Monitoring, incident response and decommissioning are never planned.
IoT Security — what’s included.
- PEXIVA-deliveredPEXIVA practitioners own and perform the work.
- PEXIVA-ledPEXIVA owns architecture, governance and delivery, with specialist contributors.
- Partner-enabledA qualified specialist delivers a defined work package under PEXIVA program governance.
Threat modeling
Structured analysis of attack paths across device, edge, network, cloud and apps.
Device identity
Unique, hardware-backed where possible, certificate-based identity per device.
Authentication and authorization
Mutual TLS, scoped policies and least-privilege access for devices and users.
Encryption
In transit and at rest, with managed key lifecycles.
Network segmentation
Zones and conduits separating IoT, OT and IT traffic.
Secure onboarding
Provisioning flows that never expose secrets.
Vulnerability management
SBOMs, scanning and prioritized remediation across the fleet.
Secure-update architecture
Signed, verified, staged and reversible updates.
Security monitoring
Device and platform telemetry feeding detection and alerting.
Incident readiness
IoT-specific playbooks, roles and exercises.
Device lifecycle and decommissioning planning
Credential revocation, data wiping and asset records at end of life.
Device certification and regulatory laboratory testing
Formal product certification and lab testing by accredited bodies.
PEXIVA leads solution architecture, cloud, data, applications, security and program delivery. Device engineering, controls, installation and local field services may be delivered with qualified specialist partners based on project requirements and geography.
What you receive.
- IoT threat model
- Security architecture and control set
- Identity and PKI design
- Segmentation design
- Secure update design
- Framework alignment matrix
- Incident playbooks
- Decommissioning procedure
Lifecycle security model
Assess
Inventory devices, data flows, exposures and current controls.
Design
Define identity, segmentation, update and monitoring controls.
Embed
Build controls into platform code, onboarding and release processes.
Sustain
Monitor, patch, exercise playbooks and retire devices safely.
Where this is typically applied.
Illustrative use cases — not descriptions of specific client deployments.
Pre-production security review
Assessing a pilot before it scales.
OT and IoT segmentation
Separating connected-operations traffic from control and business networks.
Connected-product security by design
Identity, update and vulnerability processes for products sold to customers.
Fleet credential rotation
Replacing shared or expiring credentials without downtime.
Designed in, not bolted on.
- Frameworks such as IEC 62443 and NIST IoT guidance are used as references; PEXIVA does not certify compliance on your behalf.
- Security monitoring can integrate with your existing SOC or managed detection provider.
- Physical security of devices is assessed with site owners.
Engagement models
Common ways to start or continue this work:
- Architecture and Security Review
- Production Implementation
- Managed IoT Operations
IoT Security — frequently asked questions
Can you make our IoT solution compliant with IEC 62443?
Does using AWS or Azure make our IoT secure?
Can you secure devices we already deployed?
Do you provide a 24/7 security operations center?
Find the gaps before an attacker does.
Book an IoT Opportunity Assessment, or ask for an IoT architecture and security review of an existing deployment.