Adversaries don’t need a quantum computer today. They just need your encrypted data – and patience.
What’s Happening?
Quantum computing is no longer a distant threat. Attackers are already harvesting encrypted data today, planning to decrypt it once quantum computers mature. This tactic —harvest now, decrypt later — means sensitive data ypu protect today could be exposed tomorrow.
At the same time, regulators are catching up. Organisations are now expected to assess quantum risk, demonstrate crypto agility, and maintain a transition plan.
What is Post-Quantum Cryptography (PQC)?
Classical encryption — the kind protecting most of today’s sensitive data — relies on mathematical problems that are extremely hard for conventional computers to solve. Quantum computers, however, can solve these problems exponentially faster , rendering many of today’s encryption standards obsolete.
Post-Quantum Cryptography (PQC) refers to a new generation of cryptographic algorithms specifically designed to withstand attacks from quantum computers. In 2024, the National Institute of Standards and Technology (NIST) finalised the first set of these standards — including ML-DSA for digital signatures and ML-KEM for encryption — marking a turning point for the industry.
Why Organisations Need to Act Today.
The threat is not waiting for quantum computers to arrive. A growing tactic known as “harvest now, decrypt later” means adversaries are already collecting encrypted data today, storing it until quantum capabilities allow them to decrypt it in the future.
This is particularly critical for long-lived sensitive data — financial records, intellectual property, healthcare information, government documents. If that data is encrypted with classical algorithms today, it may not be safe tomorrow.
Beyond the technical risk, the regulatory landscape is also shifting. Organisations are increasingly expected to assess their quantum exposure, demonstrate cryptographic agility, and maintain a clear transition plan.
How to Prepare Your Organisation
Transitioning to PQC does not have to be disruptive. A practical approach involves:
- Inventory your current cryptographic usage across systems and data
- Prioritise data with a long lifespan or high sensitivity
- Adopt a crypto-agile platform that supports both classical and PQC algorithms during the transition period
- Plan hybrid deployments — running classical and PQC mechanisms in parallel reduces risk during rollout
- Update key management policies to reflect new algorithm requirements
- Pilot first before organisation-wide deployment
- Train your team so they understand what quantum resilience means in practice
What PQC Readiness Means for SecureAge Products
When we say SecureAge products are PQC-ready, it means every layer of protection your data relies on has been upgraded — from the moment a file is encrypted, to how it is signed, shared, and transmitted.
| Product | What PQC readiness means |
| SecureData | Files at rest, in use, and in transit are encrypted with quantum-resistant algorithms—even if intercepted today, they cannot be decrypted by a future quantum computer |
| SecureEmail | Email signatures and certificates are quantum-resilient — the identity verification underpinning your communications stay trustworthy in a post-quantum world |
| SecureFile | Controlled file sharing uses PQC-grade encryption end-to-end —files shared externally remain protected regardless of when they are accessed |
| CatchPulse | Endpoint protection blocks threats before they execute — ensuring that even as attacks methods evolve with AI and quantum capabilities, malicious applications and unknown malware cannot run in your environment |
| SecureAge Central | Policy management and TLS handshakes between client and server are secured with NIST-standard PQC algorithms — your entire deployment is covered, not just individual products |
Your transition is also seamless — SecureAge supports hybrid classical and PQC deployments, so you do not have to choose between security and business continuity.
SecureAge is Ready
As of April 2026, SecureAge has implemented full PQC readiness across its entire data-protection portfolio on windows, macOS, and Linux. Protection extends across the full cryptographic chain — user certificates, peer certificates, and TLS handshakes between clients and servers.
Our solutions align with major compliance frameworks including ISO/IEC 27001, HIPAA, GDPR, and PCI DSS — so your transition to quantum-resilient security supports your existing governance obligations.
The shift to post-quantum security is not a question of if — it is a question of when, and whether your organisation will be ready.