Protect Your Digital Trust Across Industries

Health care

Where PKI is used
TLS for EHR portals, PACS/DICOM transport, device identity for imaging/infusion pumps, code signing for medical device firmware, S/MIME for clinician email.

Typical problems
Long-lived embedded certs in devices, multiple administrative domains (hospitals/clinics/labs), trust sprawl after acquisitions, assumptions that device auto-renewal = secure.

Concrete risks / scenarios

• MRI firmware signed with weak keys → attacker could install modified firmware.

• Clinic VPNs trusting an old internal CA → remote access compromise.

• Legacy infusion pumps using SHA-1 certs that auto-renew silently, exposing patient data channels.

What to fix first
Posture first – inventory devices and trust relationships; urgent crypto fixes for any weak/expired certs found.

Quick remediation (this week)

1. Run discovery across ADCS, trust stores, PACS servers and medical device management consoles.

2. Flag certs with deprecated algorithms or >5-year lifetimes.

3. Isolate devices that can’t be updated; apply network segmentation.

4. Remove/decommission any ad-hoc CAs used during commissioning.

5. Create a prioritized remediation list (devices + services) for replacement or proxied renewal.

How PKI Insights helps
Detects embedded/orphan certs, flags weak crypto in devices, and maps trust relationships across clinical systems.

Manufacturing (OT / Industrial Control Systems)

Where PKI is used
Device identity for PLCs/RTUs, secure firmware/OTA updates, TLS for HMIs and OPC UA, machine-to-machine encryption.

Typical problems
Long-lived embedded certs, devices with no automatic renewal path, inconsistent templating across factories, shadow CAs from acquired plants.

Concrete risks / scenarios

• A PLC uses an embedded cert issued 10 years ago with RSA-1024 → attacker forges device identity or intercepts telemetry.

• A firmware update server trusts an old intermediate CA that wasn’t decommissioned after a merger → rogue firmware accepted.

• Manual certificate rollouts require factory downtime.

What to fix first
Posture first (discover embedded certs and trust chains), then CLM for production-grade devices that can support automated renewal.

Quick remediation (this week)

• Inventory certs on SCADA/HMI endpoints and firmware servers.

• Flag devices with >5-year key lifetimes or legacy algorithms.

• Isolate legacy devices and plan staggered replacement or proxying with a gateway that supports CLM.

How PKI Insights helps
Continuous ADCS + endpoint discovery to find embedded/orphan certs and flag weak crypto across OT networks.

Electric Utilities (Power grid, substations, smart grid)

Where PKI is used
SCADA/IEC 61850 TLS, substation device identity, smart meter (AMI) authentication, VPNs between control centers.

Typical problems
Fragmented trust domains (regional substations), regulatory complexity (NERC CIP), long device lifecycles, offline devices that can’t do online renewal.

Concrete risks / scenarios

• A substation controller still trusts an internal CA with weak template permissions → attacker enrolls a certificate for a spoofed device.

• Smart meters auto-renew with weak parameters; a successful supply-chain attack leads to mass impersonation of meters.

• Patch windows force manual certificate updates causing service disruptions.

What to fix first
Posture first (map trust relationships and CA permissions), urgent cryptographic fixes for any weak keys; CLM for devices capable of automated updates.

Quick remediation (this week)

• Map which substations and control servers trust which CAs.

• Audit CA/template permissions and lock down enrollment roles.

• Identify offline devices and plan secure proxy or gateway strategies for rotation.

How PKI Insights helps
Visual mapping of trust relationships across domains and automated alerts when templates or permissions change — critical for NERC-oriented compliance.

Telecom

Where PKI is used
Network element TLS (BSS/OSS), 5G network functions (NF) mutual TLS, SIM/USIM provisioning, code signing for network firmware, customer-facing APIs.

Typical problems
Huge certificate scale across equipment vendors, inconsistent template policies across regions, automation that doesn’t respect per-domain isolation.

Concrete risks / scenarios

• A provisioning server trusts a deprecated CA → rogue SIM profiles accepted.

• Inter-region template misconfiguration allows overly broad enrollment roles → rogue device certificates.

• Auto-deployed certs share keys between staging and production environments.

What to fix first
Hybrid: posture to map domains and enrollment permissions, then CLM to automate at scale once trust boundaries are validated.

Quick remediation (this week)

1. Inventory certs across core network, edge, and provisioning servers.

2. Validate template permissions and enrollment roles per region.

3. Identify shared/private key reuse in automation scripts.

4. Shorten TTLs for external endpoints and put renewals under CLM.

5. Create a domain-segregation policy for certificate issuance.

How PKI Insights helps
Scales discovery and policy checks across many devices/sites, highlighting cross-domain misconfigurations and template risks.

Finance

Where PKI is used
TLS for trading APIs, client/server authentication, ATMs, code signing, internal PKI for CAs and HSM-backed signing.

Typical problems
Stringent compliance plus legacy systems, complex supplier ecosystems, and high-value target for credential misuse.

Concrete risks / scenarios

• A code-signing key stored without HSM protection is compromised → fraudulent builds signed and distributed.

• An internal CA has overly broad template permissions allowing developers to request high-privilege certs.

• Automated CLM renews certs but doesn’t alert on unauthorized template changes.

What to fix first
Hybrid: immediate posture check for HSM/key controls and template permissions, and CLM for operational TLS certs to avoid expiry outages.

Quick remediation (this week)

• Verify all signing keys are HSM-backed and review access controls.

• Run a template-permissions audit and remove developer enrollment from privileged templates.

• Put short-lived certs for public-facing APIs under CLM.

How PKI Insights helps
Combines crypto/key checks with template audits and expiry monitoring — bridging security and ops needs.

Cloud / SaaS Providers & Managed Service Companies

Where PKI is used
Multi-tenant TLS, service-to-service auth, client certs for API customers, signing tokens and webhooks.

Typical problems
Scale: huge numbers of certs across tenants, rapid provisioning, inconsistent lifecycle policies per customer.

Concrete risks / scenarios

• A tenant’s certs expire unexpectedly during rollout because tenant-specific renewal wasn’t integrated with provider CLM.

• Automation scripts provision certificates with default weak TTLs or shared private keys.

• Provider automation masks a rogue tenant enrollment path.

What to fix first
CLM for scale (automate renewals across tenants) but only after posture checks to ensure per-tenant separation and proper template scoping.

Quick remediation (this week)

• Standardize certificate templates per tenant and enforce segregation.

• Implement short TTLs for public endpoints and automate renewals.

• Audit automation scripts for any use of shared private keys.

How PKI Insights helps
Scalable inventory + policy checks so CLM automation doesn’t inadvertently cross-tenant boundaries.

Transportation & Logistics (airlines, shipping, telematics)

Where PKI is used
Aircraft systems, telematics on vehicles, secure OTA updates, TLS for booking/payment systems.

Typical problems
Devices in the field with intermittent connectivity, long certification chains for avionics, regulatory audit trails required.

Concrete risks / scenarios

• A fleet’s telematics units use outdated algorithms and can be spoofed, enabling fake location or telemetry injection.

• OTA update servers trust deprecated intermediates after a merger, enabling malicious updates.

• Manual cert processes cause delayed security patches.

What to fix first
Posture first for field devices and update servers; CLM where connectivity and device firmware supports it.

Quick remediation (this week)

• Identify devices that can’t do in-place renewal and plan gateway-based rotation.

• Validate signing keys used for OTA are HSM-protected.

• Map which fleet management systems trust which CAs.

How PKI Insights helps
Detects chain/trust issues and flags devices using weak algorithms, enabling prioritized remediation

Water & Wastewater (municipal services)

Where PKI is used
SCADA controllers, remote telemetry, API endpoints for monitoring, secure VPNs.

Typical problems
Under-resourced IT, long device lifespans, islands of automation with inconsistent security policies.

Concrete risks / scenarios

• A remote pump controller has an expired cert and uses a fallback insecure connection method, exposing control plane.

• An ad-hoc CA used during commissioning remains trusted in production.

What to fix first
Posture first: inventory and decommission ad-hoc CAs; then bring in CLM for systems that can be automated.

Quick remediation (this week)

• Discover all CAs and certificate expiries in field devices.

• Decommission ad-hoc CAs and remove them from trust stores.

• Prioritize replacement of controllers that can’t support modern crypto.

How PKI Insights helps
Low-effort discovery to find ad-hoc trust anchors and show which devices pose the highest immediate risk.

Legal

Where PKI is used
S/MIME for confidential email, document signing (court filings, contracts), client authentication to portals, long-term archival signing (time-stamping), secure remote notarization.

Typical problems
Mixed use of HSM vs software keys, inconsistent e-signature policies across offices, outdated signing certs for archived documents, poor key custody practices.

Concrete risks / scenarios

• Partner law office uses software key for document signing → higher risk of key theft or repudiation.

• Long-term archived contracts signed with weak algorithms leading to future non-repudiation problems.

• Automated signing processes lack visibility into who can request high-privilege signing certs.

What to fix first
Posture first – confirm signing key custody, HSM protection, and archive integrity; then apply CLM to manage short-lived session/client certs.

Quick remediation (this week)

1. Audit document signing keys – confirm HSM backing and access controls.

2. Inventory archived signed documents and note algorithm/key strength used.

3. Lock down template permissions for signing templates (restrict RA roles).

4. Enforce short lifetimes for client authentication certs; add CLM for portal certs.

5. Draft a policy for migration/re-signing of critical long-term archives if needed.

How PKI Insights helps
Highlights non-HSM keys, tracks signing key usage, and surfaces archived docs signed with weak crypto.

Business Services (consulting, accounting, B2B SaaS)

Where PKI is used
Client portals (mutual TLS), API authentication, code signing for SaaS releases, internal VPNs, client certificate onboarding.

Typical problems
Multi-tenant certificate sprawl, automation scripts that don’t enforce per-client isolation, inconsistent certificate policies between teams.

Concrete risks / scenarios

• A consultant portal allows client cert enrollment with default privileges → cross-client access risk.

• Automation uses shared private keys for deployment across customers.

• SaaS provider’s CI/CD signs artifacts with a key that lacks HSM protection.

What to fix first
CLM first for operational scale (avoid expiries and downtime), but only after a light posture check to ensure tenant separation and template scoping.

Quick remediation (this week)

1. Standardize per-tenant templates and enforce segregation.

2. Scan automation pipelines for hardcoded/shared keys.

3. Put public endpoints under CLM with short TTLs.

4. Ensure code-signing keys are HSM-backed and access-restricted.

5. Add alerts for unexpected template or enrollment changes.

How PKI Insights helps
Provides scalable inventory and policy enforcement so CLM automation won’t cross tenant boundaries or mask risky templates.

Industry’s Swiss Army Knife for PKI Posture and CLM 

By combining PKI posture analytics with CLM automation, PKI Insights allows IT teams to:

• Identify risks before they become outages

• Maintain compliance with industry standards

• Safely scale automation across complex environments

Take control of your PKI infrastructure today and secure the foundation of your digital trust.