Cyber & Information Security Experts
We are all things PKI
Experts in Public Key Infrastructure – delivering trusted cryptographic solutions, managed services, and consultancy to secure your digital future.
contact us
Trusted by Industry Leaders
Proven Partnerships Across Government and Enterprise
From national defence programmes to global enterprises, Unsung is the trusted partner for secure, resilient, and future-ready PKI services. Our clients rely on our cryptographic expertise to safeguard their most critical systems, ensure compliance, and enable digital transformation.
.png)
.png)
.png)
.png)
Technology
Our Technology Partners
Trusted partnerships with leading PKI and security vendors to deliver best-in-class, future-ready cryptographic solutions.
learn more
Unsung Government
Frameworks
Our Credentials
PKI Consortium
As members of the Public Key Infrastructure Consortium (PKIC), we collaborate with global experts to advance PKI standards and interoperability. This reflects our commitment to strengthening digital trust and securing critical systems across sectors.
Learn More
Cyber Essentials Plus
Cyber Essentials Plus certified, demonstrating our systems are securely configured, robustly defended, and independently tested against common cyber threats.
Learn More
.avif)
ISO 27001
We are ISO 27001 certified, ensuring rigorous information security management practices aligned to international standards for data confidentiality and integrity.
Learn More
Armed Forces Covenant
As Armed Forces Covenant signatories, we support veterans and reservists, aligning our values with national commitments to defence and service communities.
Learn More
Blogs
Our Latest Insights
Interviews, tips, guides, industry best practices, and news.
PQC Impacts: Inherited Quantum Risk From SaaS and Suppliers
Your suppliers' cryptography protects your data and caps your migration. See how to assess their post quantum solutions and remove inherited exposure.
Read More
November 7, 2026
PQC Impacts: Secure Email and S/MIME in a Quantum Era
S/MIME has no forward secrecy, so encrypted email is a prime harvest now, decrypt later target. What quantum computing means for email cryptography.
Read More
November 5, 2026
PQC Advanced Protection: Quantum-Safe HSM Readiness
An HSM that cannot sign with ML-DSA cannot issue post-quantum certificates. What quantum safe cryptography requires from your root of trust hardware.
Read More
November 3, 2026
PQC Impacts: Cryptographic Risk in Embedded and OT Estates
Embedded and OT devices outlive every migration deadline. Learn where quantum resistant encryption fails on constrained hardware and what to do instead.
Read More
November 1, 2026
PQC Explained: The Three Timelines That Decide Quantum Risk
A quantum risk assessment compares data lifetime, migration time and CRQC arrival. Learn how the three timelines decide if your exposure has already begun.
Read More
October 30, 2026
PQC Impacts: Digital Signatures and Non-Repudiation Risk
Quantum computing undermines digital signatures retrospectively. What it means for validity and non-repudiation, and how timestamps help.
Read More
October 28, 2026
PQC Explained: Which Cryptographic Algorithms Quantum Breaks
Quantum computing breaks RSA, ECDSA and Diffie-Hellman, but not AES or SHA-2. Which algorithms fail, which survive and what replaces them.
Read More
October 26, 2026
PQC Explained: Quantum Key Distribution and PQC Compared
QKD secures key exchange over fibre but cannot authenticate. How it compares with post-quantum cryptography and where each fits.
Read More
October 24, 2026
PQC Explained: Why Q-Day Is the Wrong Unit for Planning
Q-Day treats a probability distribution as a date. Learn the post-quantum meaning behind the term and the six planning units that replace it in practice.
Read More
October 22, 2026
PQC Advanced Protection: PQC in Zero Trust Architecture
Zero Trust replaces network trust with cryptographic proof. What happens to that proof under quantum attack, and why Zero Trust estates migrate faster.
Read More
October 20, 2026
PQC Implementation: Where PQC Support Has Already Shipped
OpenSSL PQC, browsers, cloud KMS and AD CS have shipped post-quantum support. See what is production ready today and what is still waiting on standards.
Read More
October 18, 2026
PQC Implementation: Building a Post-Quantum Test Lab
Post-quantum failures are interoperability failures. How to build a test lab that finds them before rollout, and what pqc solutions to prove in it first.
Read More
October 16, 2026
PQC Implementation: Supplier Due Diligence for PQC Readiness
How to assess post quantum cryptography companies and existing suppliers: the questions that produce evidence, the contract terms, and the red flags.
Read More
October 14, 2026
PQC Impacts: Key Sizes, Handshakes and Network Performance
Post quantum algorithms are larger, not slower. See what they cost in handshake size, certificate chains and latency, and how to reduce the overhead.
Read More
October 12, 2026
PQC Impacts: The Endpoint Cryptography Blind Spot Explained
Endpoints hold certificates, keys and trust stores that most PQC programmes never scan. See what post quantum cyber security means at the device level.
Read More
October 10, 2026
PQC Advanced Protection: Cloud Key Management Readiness
Cloud data at rest is mostly AES and unaffected. The quantum exposure in key management sits in key import, signing keys and the path to the service.
Read More
October 8, 2026
PQC Implementation: Evidencing PQC Readiness for Audit
Auditors want artefacts, not assurances. The evidence set that demonstrates a post quantum secure position, and the findings that come up most often.
Read More
October 6, 2026
PQC Impacts: Seven Drivers of Post-Quantum Risk Exposure
Two organisations in the same sector can carry very different post-quantum cyber security exposure. Here are the seven drivers that explain the difference.
Read More
October 4, 2026
PQC Impacts: How Quantum Risk Exposure Varies by Sector
Post-quantum security exposure is not uniform. Compare quantum risk across defence, healthcare, finance, nuclear, transport and government estates.
Read More
October 2, 2026
PQC Implementation: Funding Migration Through Refresh Cycles
Most post quantum solutions cost little if specified in refresh cycles already budgeted. What needs direct funding, and what rides existing spend.
Read More
September 30, 2026
PQC Implementation: UK, US and EU Guidance Compared
The NIST post quantum cryptography timeline, NCSC milestones and EU roadmap compared, with the US federal deadlines that now reach contractors too.
Read More
September 28, 2026
PQC Implementation: Governance and Board-Level Ownership
Post-quantum security stalls without a named owner. How to place quantum risk on the board register, what to report, and which decisions the board owns.
Read More
September 26, 2026
PQC Implementation: What UK Organisations Have Done So Far
PQC adoption data for 2026: 87% planning, 7% deployed and 0% of scanned domains on post-quantum certificates. What the gap means.
Read More
September 24, 2026
PQC Advanced Protection: Post-Quantum Code Signing
Software signed today runs for fifteen years. How to prepare digital signing for post-quantum, which algorithms to use, and why timestamps are critical.
Read More
September 22, 2026
NIST Post Quantum Algorithms
The NIST PQC algorithms explained: ML-KEM, ML-DSA, SLH-DSA, LMS and HQC, with key sizes, performance and guidance on which to use for each purpose.
Read More
September 20, 2026
PQC Advanced Protection: PQC for UK Local Government
Councils hold some of the longest-retention records in the public sector. Practical post quantum cyber security steps for authorities without a PKI team.
Read More
September 18, 2026
PQC Implementation: Hybrid and Composite Certificates
Hybrid, composite, dual and chameleon certificates compared. How post quantum asymmetric encryption is deployed alongside classical algorithms today.
Read More
September 16, 2026
PQC Explained: Why Every Cipher Has an Expiry Date
Every cipher eventually fails. See how DES, MD5 and SHA-1 fell, how long each took, and why the ability to break encryption is a question of when.
Read More
September 16, 2026
Unsung and PKI Solutions Announce Technology Partnership
Unsung and PKI Solutions Announce Partnership to Strengthen PKI Visibility, Assurance and Skills
Read More
September 15, 2026
.jpg)
Unsung and Ascertia Announce Strategic Partnership to Deliver High-Trust Digital Signing and PKI Solutions
Unsung partners with Ascertia to deliver ADSS Server and SigningHub — high-trust digital signing, qualified eIDAS signatures and PKI services in the UK.
Read More
September 14, 2026
CRQC: What Would Actually Break Your Cryptography
A CRQC is a quantum computer able to break RSA and ECC. See what quantum computing cryptography research requires, and the signals that it has arrived.
Read More
September 14, 2026
How Certificate Lifetime Determines Your Post-Quantum Timeline
With automated issuance, an algorithm change reaches every endpoint in one certificate lifetime. How 47-day certificates drive PQC migration.
Read More
September 12, 2026
Legacy PKI Trust Debt: The Five Barriers to Safe Replacement
Legacy PKI carries five forms of trust debt. What has built up, what can be carried forward, and how to sequence a safe replacement.
Read More
September 11, 2026
.png)
How to Modernise Legacy PKI Securely in 2026
How to modernise legacy PKI without breaking production: the security, operational and migration barriers, and a phased approach that de-risks the upgrade.
Read More
September 11, 2026
Certificate Pinning Explained: Risks, Failures and Alternatives
What certificate pinning is, why it now adds more risk than it removes, what to do when a pin fails, and safer alternatives.
Read More
September 11, 2026
PQC Readiness: Five Practical Steps That Cost Nothing
PQC readiness does not start with a budget. Five steps you can take now, and why the inventory comes before the algorithms.
Read More
September 11, 2026
What Does Crypto Agility Actually Mean in Practice?
Crypto agility means changing algorithms without re-engineering systems. What it takes across PKI, applications and governance.
Read More
September 11, 2026
Trust Now, Forge Later (TNFL): The PQC Signature Threat
Quantum computers will be able to forge digital signatures. What Trust Now, Forge Later means for firmware, contracts and identity.
Read More
September 11, 2026
Harvest Now, Decrypt Later (HNDL): What CISOs Need to Know
Adversaries are collecting encrypted data now to decrypt later. What HNDL means, which data is exposed and how to assess your risk.
Read More
September 11, 2026
.png)
Ballot SC-081v3: Reduction of Public TLS Certificate Lifetimes
SC-081v3 cuts public TLS certificate validity to 200 days in 2026, 100 in 2027 and 47 in 2029. What it means and how to prepare.
Read More
September 11, 2026
What is a CBOM? Cryptographic Bill of Materials Explained
A Cryptographic Bill of Materials lists every cryptographic asset you hold. What a CBOM contains, how it differs from an SBOM, how to build one.
Read More
September 11, 2026
Is AES Symmetric or Asymmetric? Symmetric Encryption Explained
AES is symmetric: one key encrypts and decrypts. How it works, why AES-256 stays quantum-safe and where key management fails.
Read More
September 11, 2026
Certificate Management Protocols: CMP vs ACME vs EST vs SCEP
CMP, ACME, EST and SCEP compared: which certificate protocol suits enterprise PKI, DevOps, IoT and network devices, and when to use each.
Read More
September 11, 2026
Understanding X.509 Digital Certificates: SSL and TLS Explained
What an X.509 certificate contains, how SSL/TLS uses it, the difference between public and private certificates, and how to get one issued.
Read More
September 11, 2026
What is Encryption? Symmetric, Asymmetric and Quantum-Safe
Encryption explained: symmetric vs asymmetric, the algorithms in use today, why key management fails and what quantum computing changes.
Read More
September 11, 2026
What Is an Encryption Key? Types, Algorithms and Security
What encryption keys are and why they matter: symmetric and asymmetric keys, key length, key protection and what post-quantum changes.
Read More
September 11, 2026
Zero Trust PKI: Why Certificate Infrastructure Decides Success
Zero Trust needs cryptographic proof of identity for every request. Why certificate infrastructure is often the constraint, and what to fix.
Read More
September 11, 2026
PKI 101: A Plain-English Guide to Digital Certificates
PKI explained without jargon: what certificates do, how trust is established, and where PKI already operates in your organisation.
Read More
September 11, 2026
What is post quantum cryptography?
Post-quantum cryptography resists attack by quantum computers. The NIST standards, which algorithms are at risk and what to do before 2030.
Read More
September 11, 2026
Certificate Lifecycle Management Business Case
How to build the investment case for a CLM platform, and why certificate automation underpins post-quantum migration.
Read More
September 10, 2026
CLM Vendor Comparison 2026: Keyfactor vs Venafi vs DigiCert, Pricing and Licensing
Independent comparison of Keyfactor, Venafi, DigiCert, Sectigo, Entrust and Certdog. Seven licensing models, pricing ranges and total cost of ownership.
Read More
September 10, 2026
The Importance of Digital Trust: Why PKI Underpins It
Digital trust rests on identity, integrity, confidentiality and non-repudiation. How PKI delivers them and what shorter lifetimes change.
Read More
September 10, 2026
What is Certificate Lifecycle Management? A 2026 Guide
Certificate lifecycle management explained: the seven stages, why manual tracking fails, and what 47-day TLS certificates mean for your renewal volume.
Read More
September 9, 2026
How to Choose a Hardware Security Module: A Vendor-by-Vendor Guide
Choosing an HSM? Compare Thales, Entrust, Utimaco, Futurex, Crypto4A, IBM, Securosys and Fortanix against the criteria that decide fit.
Read More
September 8, 2026
In-House, Consultancy or Managed Service: Choosing the Right PKI Operating Model
In-house, consultancy or managed service? A clear comparison of the three PKI operating models by cost, risk, skills dependency and suitability.
Read More
July 15, 2026
Ten Questions to Ask Any PKI Consultancy Before You Engage Them
Choosing a PKI consultancy? Ten questions that separate genuine specialists from generalists, covering independence, expertise, delivery and support.
Read More
July 14, 2026
How Mature Is Your PKI? A Framework for Self-Assessment
A practical framework for assessing PKI maturity across governance, visibility, automation and post-quantum readiness. Find out where your estate stands.
Read More
July 13, 2026
Scoping a PKI Requirement: What to Include Before You Approach the Market
The most common gaps in PKI tender specifications, and how poorly scoped requirements inflate cost and delivery risk. A practical guide for buyers.
Read More
July 12, 2026
Building the Internal Business Case for a PKI Engagement
How does a security lead justify PKI investment internally? A practical guide to framing the risk, the cost of inaction, and scoping an approvable first step.
Read More
July 11, 2026
How to Buy PKI Services Through G-Cloud, DOS and Cyber Security Services 3
Unsung is listed on the main UK public sector frameworks. A short guide to which route suits which engagement, and how buyers can find and engage us.
Read More
July 10, 2026
From Discovery to Go-Live: How a PKI Design and Build Engagement Runs
How a PKI design and build engagement runs, phase by phase from discovery to go-live, and where projects most often lose time.
Read More
July 9, 2026
What a PKI Support Service Actually Looks Like Month to Month
What a retained PKI support service involves: onboarding, the monthly support rhythm, quarterly reviews and governance.
Read More
July 8, 2026
Inside a PKI Health Check: How We Assess, Grade and Report on Your Estate
What happens in a PKI health check? Unsung walks through the engagement from kick-off to findings report, and what you receive.
Read More
July 7, 2026
Digital Trust in 2026: Eight Shifts Shaping the Year in Cryptographic Security
Our 2026 outlook on cryptographic security: mandatory automation, post-quantum readiness, content provenance and machine identity.
Read More
June 8, 2026
The End of Public TLS Certificates for mTLS: Choosing the Right PKI Hierarchy
Browsers are ending public TLS certificates for mTLS. How to choose the right private or non-Web PKI hierarchy instead.
Read More
June 7, 2026
Code-Signing Certificates Move to 460 Days: What Changes and How to Prepare
Code signing certificate validity drops to 460 days. What changes, and how cloud and HSM-backed signing keep you compliant.
Read More
June 6, 2026
DNS-PERSIST-01 Explained: A Simpler, Safer Path to Certificate Automation
What DNS-PERSIST-01 is and how it offers a simpler, safer route to automated certificate issuance and renewal.
Read More
June 4, 2026
Beyond Detection: How Cryptographic Content Provenance Answers the Deepfake Problem
Why detection is losing the race against deepfakes, and how cryptographic content provenance and the C2PA standard provide verifiable proof of origin.
Read More
June 3, 2026
Payment HSMs: Meeting DORA, PCI DSS and FIPS 140-3
How HSMs support compliant, high-volume payments under DORA, PCI DSS and FIPS 140-3, and how to build them into your estate.
Read More
June 2, 2026
Application and Infrastructure Transformation for PQC: What Your Technology Estate Means for Readiness
PQC readiness depends on your technology estate. What SaaS, IaaS and on-premise organisations need to consider for post-quantum change.
Read More
April 27, 2026
Why Post-Quantum Cryptography Is a Business Transformation, Not an Algorithm Swap
Post-quantum cryptography is not just a technical upgrade. Learn why PQC demands enterprise-wide transformation and how to approach it strategically.
Read More
April 20, 2026
PQC Support vs Performance: Why Vendor Claims Need Scrutiny
Many vendors claim PQC support, but how do products perform in real conditions? Why the gap between claims and performance matters.
Read More
April 13, 2026
PQC and Legacy IT: How Architectural Wrappers Can Bridge the Gap
Not every system can be upgraded for PQC. How architectural wrappers offer a practical, risk-managed way to protect legacy technology.
Read More
March 30, 2026
Cryptographic Discovery and Inventory: Where to Start
You cannot manage what you cannot see. How cryptographic discovery works, what an inventory holds and why PQC migration depends on it.
Read More
March 23, 2026
.png)
What It’s Really Like Managing PKI Implementation & Migration Projects
PKI implementation needs more than technical skill. How strong governance and stakeholder management drive successful PKI migrations.
Read More
March 9, 2026
Lessons from Previous Hype Cycles: Why PQC Must Not Repeat the Mistakes of Cloud and Big Data
PQC risks repeating the costly mistakes of cloud and big data. Why it needs a business-led strategy, not just new technology.
Read More
February 23, 2026
Unsung and Cryptomathic Announce Partnership to Deliver Enterprise Key Management Solutions
Unsung partners with Cryptomathic, combining CrystalKey 360 enterprise key management with specialist PKI consultancy and delivery.
Read More
February 20, 2026
Unsung and Krestfield Announce Strategic Partnership to Deliver Certificate Lifecycle Management Solutions
Strategic partnership between Unsung and Krestfield to deliver Certdog certificate lifecycle automation for Microsoft AD CS and hybrid PKI environments.
Read More
February 5, 2026
Post-Quantum Cryptography: Preparing Your PKI for Quantum Computing
Understand post-quantum cryptography and how to prepare your PKI for quantum computing. Balanced guidance from Unsung's cryptography specialists.
Read More
February 5, 2026
.png)
G7 Cyber Expert Group Sets 2035 Target for Post-Quantum Cryptography Transition in Financial Services
The G7 Cyber Expert Group has released a coordinated roadmap for post-quantum cryptography transition in financial services, with a 2035 migration target.
Read More
January 14, 2026
Unsung and Crypto4A Announce Strategic Partnership to Deliver Quantum-Safe Cryptographic Infrastructure
Unsung and Crypto4A partner to deliver quantum-safe cryptographic infrastructure, combining PKI expertise with post-quantum HSMs.
Read More
January 13, 2026
Overcoming Resistance to Automation in Certificate Management
Learn how to overcome resistance to CLM automation and align certificate management with business outcomes.
Read More
December 7, 2025
Inside an Enterprise CLM Deployment: Key Features to Look For
Use this checklist to evaluate enterprise CLM solutions that ensure security, scalability, and compliance.
Read More
December 6, 2025
The Four Pillars of CLM - Applicability, Visibility, Availability, and Automation:
Explore the four pillars of effective certificate lifecycle management—governance, automation, visibility, and integration.
Read More
December 5, 2025
The Real Cost of Expired Certificates (and How CLM Prevents It)
Discover the business risks and financial impact of expired certificates—and how proactive PKI can prevent them.
Read More
December 4, 2025
Keyfactor Command 25.4: Elevating Certificate Lifecycle Management with Unified Intelligence
What's new in Keyfactor Command 25.4: EJBCA integration, better risk visibility and custom dashboards, and how Unsung supports clients.
Read More
December 3, 2025
Why Traditional Certificate Management Is No Longer Enough
Find out why legacy certificate management fails today’s needs and how automation reduces security risk and outages.
Read More
December 3, 2025
Digital Identity in Government: Lessons from Estonia, Spain, and Beyond
Learn how governments use PKI to protect digital identities, ensure data integrity, and deliver trusted public services.
Read More
December 1, 2025
From Cockpits to Shopping Carts: PKI in Aviation and E-commerce
Discover how PKI secures aviation systems and e-commerce transactions through encryption and strong authentication.
Read More
November 30, 2025
Everyday Examples of PKI in Action
See how PKI secures daily digital interactions, from online banking to smart devices, ensuring trust and compliance.
Read More
November 29, 2025
Quantum-Safe PKI for Transport: Preparing Critical Infrastructure for Cryptographic Transition
Why UK transport operators should plan quantum-safe PKI and CLM now to protect rail, highways, aviation and public transport.
Read More
November 27, 2025
PKI Maturity in Transport: A Practical Guide to Advancing CLM Capabilities
The five stages of PKI maturity, and how UK transport operators move from manual certificate tracking to automated, crypto-agile CLM.
Read More
November 26, 2025
PKI in UK Transport: Why Digital Trust Now Determines Service Reliability
Why PKI and certificate lifecycle management now decide service reliability and passenger confidence across UK rail, road and aviation.
Read More
November 25, 2025
PKI for Intelligent Transport Systems: Securing V2X and Smart Motorway Communication
How PKI and certificate lifecycle management protect V2X, smart motorways and roadside infrastructure across the UK transport network.
Read More
November 24, 2025
CLM for Multi-Vendor Transport Supply Chains: Securing Third-Party Access and Device Trust
How certificate lifecycle management strengthens identity, trust and secure access across multi-vendor transport supply chains.
Read More
November 23, 2025
Certificate Outages in Critical Infrastructure: Preventing Transport Disruption with CLM
Expired certificates are a leading cause of outages in critical infrastructure. How CLM helps UK transport operators prevent disruption.
Read More
November 22, 2025
Certificate Lifecycle Automation for Rail Networks: Protecting ETCS and Control Systems
How automated certificate lifecycle management protects ETCS and rail control systems, prevents outages and builds trust across UK rail.
Read More
November 21, 2025
Aviation PKI: Certificate Management for Airside Devices, Radar Systems, and Ground Operations
How PKI and certificate lifecycle management secure airside access, radar, flight operations and ground services, and reduce disruption.
Read More
November 20, 2025
Too Many Tools, Too Little Time: Making Automation Work Across Silos
Why certificate automation fails at organisational edges, and practical steps to unify tools, reduce outages and improve visibility.
Read More
November 18, 2025
Navigating the NIST Post-Quantum Cryptography (PQC) Roadmap
NIST has set firm deadlines for phasing out RSA and ECC, with post-quantum cryptography becoming essential by 2030. Learn what the roadmap means, the risks of delay, and how Unsung helps organisations transition to a quantum-secure future.
Read More
September 16, 2025
Testimonials
Hear from clients who trust Unsung to deliver secure, reliable PKI solutions.
That’s the most informative conversation we have had about PKI in 4 years of dealing with PKI suppliers
This is the first time we have felt like we are dealing with an organisation that really knows about PKI
You always tailor your services to the customer and willing to go the extra mile
Flexibility. Can do attitude, willingness to go above and beyond or to help out with issues
Professional and knowledgeable. The team are flexible enough to accommodate 'urgent' issues and respond accordingly
The way you manage the delivery lifecycle provides transparency and effective management of risk
The quality of your outputs has made an important contribution to achieving our tight timeline’s
