Welcome to the first Cloud CISO Perspectives for October 2026. Today, Stephanie Kiel explains the latest on our approach to post-quantum cryptography, and shares a new tool to help CISOs and executives prepare their organizations for PQC.

As with all Cloud CISO Perspectives, the contents of this newsletter are posted to the Google Cloud blog . If you’re reading this on the website and you’d like to receive the email version, you can subscribe here .

By Stephanie Kiel, Head of Cloud Security Policy, Government Affairs and Public Policy, Google Cloud

Post-quantum cryptography (PQC) is one of the most urgent security shifts of the decade — and one of the easiest to tune out. For security leaders and policymakers, the research is dense, scattered across papers and engineering blogs, and can be challenging to turn into action.

To help, we're launching Prepare for Post-Quantum Cryptography , a public Gemini Notebook that brings Google's PQC research, engineering blogs, and migration guidance together in one place. Ask it questions, listen to an audio overview, or test yourself with flashcards, and quickly get up to speed on the quantum threat.

Quantum computing is rapidly moving from theory to reality. Our Willow chip and Quantum Echoes algorithm mark substantial progress, and Google research estimates that breaking ECDLP-256 and RSA-2048 encryption — the public-key cryptography schemes protecting much of our online data — would require around 500,000 and 1 million imperfect quantum computer components (noisy qubits), respectively.

This research has consequences now. It indicates that today’s online security is more vulnerable to future quantum computers than previously thought.

In Store Now, Decrypt Later attacks, adversaries may steal encrypted data now and wait to decrypt it once a sufficiently powerful quantum computer exists. Data that we’ve long considered sensitive — health records, financial data, intellectual property, and government secrets — is already at risk .

Editorial analysis conducted by the FreeSky Cloud desk indicates that the circumstances surrounding "Cloud CISO Perspectives: New Gemini Notebook can help CISOs and policymakers prepare for PQC" reflect broader industry-wide shifts across Cloud Architecture. Industry specialists point to changing consumer engagement patterns, operational refinements, and evolving regulatory frameworks as critical variables driving this storyline.

Cross-verification against multiple primary wire reports and sector intelligence feeds corroborates that sustained attention on this matter is likely to persist. Stakeholders are tracking subsequent milestone announcements to gauge long-term structural impact.

Editorial Fact-Check & Verification Note: This briefing was curated, corroborated, and synthesized by the FreeSky Cloud Editorial Desk. Readers following "Cloud CISO Perspectives: New Gemini Notebook can help CISOs and policymakers prepare for PQC" are encouraged to review the full primary source coverage linked below for complete historical context, direct quotes, and official statements.