Quantum computing is moving beyond the laboratory and becoming a strategic technology investment. As major technology providers take concrete steps in this space, a critical question emerges: Will today's encryption methods be sufficient against tomorrow's threats?

Answering this question requires examining two distinct topics together. The first is the computational capacity offered by quantum computing; the second is the transformation this capacity demands from existing cryptographic infrastructures: post-quantum cryptography (PQC).

While quantum computing holds enormous processing power potential in fields such as drug discovery, materials science, optimization, and financial modeling, its possible impact on existing encryption methods makes long-term preparation on the enterprise security side unavoidable.

The Google technology ecosystem, including our partner Google Cloud, surpassed a 30-year milestone in quantum error correction with its 105-qubit Willow processor. In 2025, Willow demonstrated the first verifiable quantum advantage by producing results 13,000 times faster than classical supercomputers. As of 2026, Willow has been opened to experimental access by researchers, and Google has further strengthened its quantum strategy with neutral atom technology.

Q-Day and the Harvest Now, Decrypt Later Risk

"Q-Day" refers to the day when quantum computers reach the maturity to break public-key encryption methods such as RSA and ECC. While it has not yet occurred, industry estimates are converging. Google Quantum AI called on the industry to act in March 2026, highlighting 2029 as the target year for PQC transition. However, looking for the risk only in the future would be misleading.

In the scenario known as "Harvest Now, Decrypt Later," attackers collect encrypted data today and store it with the intent to decrypt it using quantum systems in the future. This makes it imperative for organizations to revisit their data security strategies now.

The First Step Toward Post-Quantum Readiness: Making Cryptographic Assets Visible

The first step in readiness is making an organization's existing cryptographic assets visible.

Which algorithm is used in which system? Which connections are protected by which protocols?

Our partner QuantumGate, through its Crypto Discovery Tool, enables the detection of cryptographic assets across the organization, identification of weak algorithms and protocols, and prioritization for post-quantum migration.

This approach gives organizations a "know what you're protecting and which systems are at risk first" perspective, turning the post-quantum transformation into a manageable roadmap.

Transitioning to Quantum Security at the Network Layer with Cloudflare

At the network layer, our partner Cloudflare announced it has moved its target of becoming fully quantum-safe across all products to 2029. Since 2022, Cloudflare has activated quantum-resistant encryption across all its websites and APIs. Today, more than 65% of human-generated traffic passing through Cloudflare is already encrypted with post-quantum cryptography.

Post-Quantum Cryptography Transformation with NIST Standards

The post-quantum cryptography standards published by NIST have confirmed that this transition is now a standardized process. When Google's 2029 timeline, Cloudflare's product-by-product migration steps, and QuantumGate's discovery-first approach are considered together, post-quantum readiness outlines a three-stage roadmap for organizations: Discover – Prioritize – Transform.

Post-Quantum Readiness with Doğuş Teknoloji

Post-Quantum Readiness is not simply about choosing the algorithms of the future; it means understanding today's cryptographic dependencies and determining which data, systems, and connections need to be protected first.

At Doğuş Teknoloji, we take an active role at every stage of this transformation — through the expertise of our cybersecurity teams and the solutions of our partners — supporting organizations in confidently planning their post-quantum journey.

Frequently Asked Questions

What is Post-Quantum Readiness?

Post-Quantum Readiness means understanding an organization's existing cryptographic dependencies and determining which data, systems, and connections need to be protected as a priority.

What does Q-Day mean?

Q-Day refers to the day when quantum computers reach the maturity to break public-key encryption methods such as RSA and ECC.

What is the Harvest Now, Decrypt Later risk?

In the Harvest Now, Decrypt Later scenario, attackers collect encrypted data today and store it with the goal of decrypting it using quantum systems in the future.

What is the first step in the post-quantum transformation?

The first step is making an organization's existing cryptographic assets visible — identifying which algorithms, protocols, and connections are being used across which systems.