Evidence timeline

14 months that changed the landscape

25 key events from January 2025 through February 2026. Government mandates, NIST standards, platform deployments, and financial disclosures.

Evidence timeline of 25 key post-quantum cryptography events from January 2025 through February 2026. Includes Executive Order 14144, DHS PQC guidance, UK NCSC migration timeline (2028/2031/2035), OpenSSH 10.0 ML-KEM default, BlackRock SEC quantum risk disclosure, Microsoft and Apple PQC deployments, Cloudflare majority PQC traffic milestone, G7 PQC roadmap for financial sector, CISA product categories, and Red Hat RHEL 10.1 ML-KEM/ML-DSA support. Categories: government, standards, platform, financial.

Q1 2025

Q1 2025: 5 events

Government

Executive Order 14144

Federal cybersecurity executive order includes PQC in modernization agenda.

Government

DHS Public PQC Guidance

DHS updates its public post-quantum cryptography guidance page (the DHS/NIST post-quantum roadmap it carries dates from October 2021).

Standards

SSH Hybrid ML-KEM Draft

IETF draft for SSH hybrid ML-KEM key exchange submitted, marking late-stage standardization progress.

Platform

Go 1.24 Ships with PQC

Go 1.24 releases with built-in ML-KEM support plus FIPS 140-3 Go Cryptographic Module.

Government

UK NCSC Migration Timeline

UK National Cyber Security Centre publishes migration milestones: 2028, 2031, and 2035 deadlines.

Q2 2025

Q2 2025: 7 events

Government

DHS PQC Preparation Guidance Update

DHS republishes its post-quantum cryptography preparation guidance (the underlying DHS memorandum is dated September 17, 2021).

Platform

OpenSSH 10.0 ML-KEM Default

OpenSSH 10.0 makes ML-KEM hybrid key exchange the default for all new connections.

Financial

BlackRock SEC Filing

BlackRock expands quantum risk disclosure language in iShares Bitcoin Trust SEC prospectus amendment.

Platform

Microsoft PQC to Windows & Linux

Microsoft brings post-quantum cryptography support to Windows Insiders and Linux platforms.

Platform

Red Hat RHEL 10 PQC

Red Hat documents PQC support in RHEL 10, signaling enterprise Linux readiness.

Government

GSA PQC Buyer’s Guide v1.0

General Services Administration releases Post-Quantum Cryptography Buyer’s Guide for federal procurement.

Government

White House Amends EO 14144

White House action and fact sheet reinforcing PQC requirements in federal cyber modernization.

Q3 2025

Q3 2025: 3 events

Standards

Go FIPS 140-3 ML-KEM Submission

The Go team announces that its cryptographic module, with ML-KEM, holds CAVP algorithm certificate A6650 and has been on NIST’s CMVP in-process list since May 2025 (FIPS 140-3 certificate #5247 was issued April 27, 2026).

Platform

Apple Quantum-Secure TLS Guidance

Apple publishes operational guidance for quantum-secure encryption in TLS across its platforms.

Financial

Fed Reserve HNDL Paper

Federal Reserve publishes “Harvest Now, Decrypt Later” in FEDS 2025 series, formally acknowledging the threat model.

Q4 2025

Q4 2025: 6 events

Platform

Google Cloud KMS PQC Preview

Google Cloud announces post-quantum KMS preview, bringing PQC to cloud key management.

Government

NCSC Annual Review

UK NCSC annual review reinforces quantum migration timeline and preparation urgency.

Platform

Cloudflare: Majority PQC Traffic

Cloudflare reports majority of human internet traffic now uses post-quantum cryptography.

Platform

AWS Private CA PQC Certificates

Amazon Web Services adds PQC digital certificates to AWS Private Certificate Authority.

Platform

Microsoft PQC APIs GA

Microsoft post-quantum cryptography APIs become generally available across Microsoft platforms.

Platform

Amazon S3 PQC TLS

Amazon S3 adds PQC TLS key exchange, extending post-quantum protection to object storage.

Q1 2026

Q1 2026: 4 events

Financial

G7 PQC Roadmap

U.S. Treasury announces G7 Cyber Expert Group roadmap for coordinating financial sector PQC transition.

Government

CISA PQC Product Categories

CISA releases post-quantum cryptography product categories, translating the issue into procurement criteria.

Platform

Apple Platform Security Update

Apple updates platform security guide with quantum-secure guidance and operational recommendations.

Platform

Red Hat RHEL 10.1 ML-KEM & ML-DSA

Red Hat announces full ML-KEM and ML-DSA support in RHEL 10.1.

Full evidence base

The book documents 66 signal events with source attribution and analysis.