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Post-Quantum Resources

Reference answers to common post-quantum questions — what is PQC, HNDL, quantum readiness, migration, and more. No sign-up required. Learn how we assess quantum readiness or why start your migration now.

Quick answers

What is post-quantum cryptography?
What is PQC?
When will quantum computers break encryption?
What is Harvest Now Decrypt Later?
What is HNDL?
How to prepare for post-quantum migration?
What are NIST post-quantum standards?
What is quantum readiness?
How much does post-quantum migration cost?
What is the difference between PQC and quantum cryptography?
What data is at risk from quantum computers?
Is my encryption safe from quantum computers?

Explore by topic

Post-Quantum Cryptography: what actually changes

Cryptography today and quantum impact
What post-quantum cryptography really is
The current reality of quantum computing

Harvest Now, Decrypt Later (HNDL)

What "Harvest Now, Decrypt Later" actually means
Why asymmetric cryptography is the focus
Which data is actually at risk
From theory to organizational relevance

Standards, Regulations and Post-Quantum Cryptography

The role of standards bodies in cryptography
Post-quantum cryptography standards: current status
Regulatory and supervisory perspectives
Translating standards and regulations into action

Cryptographic Inventory and Dependency Mapping

Why cryptographic inventory matters
Where cryptography is used in organizations
Direct and indirect cryptographic dependencies
Structuring a usable cryptographic inventory

Prioritization and Post-Quantum Migration Strategy

Why prioritization is unavoidable
Key prioritization criteria
Defining realistic post-quantum actions
Communicating strategy and managing expectations

Cost Estimation and Economic Impact of Post-Quantum Migration

Why post-quantum costs are hard to estimate
Main technical cost drivers
Organizational and indirect cost drivers
Using cost ranges and scenarios
Connecting costs to business decisions

Governance, Monitoring, and Continuous Post-Quantum Readiness

Why post-quantum readiness cannot be a one-time effort
Governance, ownership and accountability
Monitoring without continuous technical scanning
Integration with risk management and compliance
Review cycles and decision checkpoints

Third-Party and Ecosystem Post-Quantum Risk

Why third-party dependencies dominate post-quantum exposure
Types of third-party post-quantum dependencies
Assessing third-party readiness without system access
Integrating post-quantum into third-party risk management
Setting realistic expectations with vendors and partners

Post-Quantum Readiness Scoring and Decision-Making

Why scoring matters (and what it must not become)
Defining valid scoring dimensions
Evidence-based scoring and uncertainty
Using scores to prioritize actions
Communicating scores responsibly

Communicating Post-Quantum Risk to Executives and Boards

Why executive communication is different
Translating technical risk into business impact
Communicating uncertainty responsibly
Supporting governance and decision-making
Common pitfalls and how to avoid them