Get Ready for Post-Quantum Encryption

Most businesses and even individuals still think of quantum computing as some futuristic “sci-fi” tech. But here’s the reality: the quantum era isn’t just coming—it’s practically here. And when it hits mainstream speed, the encryption methods we’ve relied on for decades—RSA, ECC, and others—will crumble like a sandcastle at high tide.

If you’re thinking, “Well, that’s years away, so I’ll deal with it later,” you’re setting yourself up for trouble. Quantum attacks are a harvest now, decrypt later problem—meaning attackers are already collecting encrypted traffic today, waiting for the day quantum power lets them crack it.

This guide breaks down why you should prepare now, how to start, and what tools and resources will help you stay ahead of the curve.

Why Post-Quantum Encryption Is Non-Negotiable

Every time you send sensitive data—whether it’s business IP, personal financial info, or even the encryption keys for your small business network—someone could be capturing it. And when quantum computing matures enough to break traditional encryption, that treasure trove will be decrypted.

This isn't just a “big tech company” problem. Small businesses, freelancers, even ethical hackers tinkering with Termux projects will all be exposed unless they adapt early.

Consider these examples:

Your IoT systems or self-driving car updates (yes, those too) could be tampered with, similar to what we discussed in how hackers could control self-driving cars.
Stored sensitive customer data could be decrypted, opening you up to lawsuits and compliance failures.
Even VPN traffic you trust now (see my Surfshark VPN review) could eventually be cracked if it’s not using quantum-safe protocols.

The “Harvest Now, Decrypt Later” Threat

This strategy is already being used. Hackers and even nation-state actors are collecting encrypted communications today. They know that once they have quantum resources, they can unlock years of sensitive data.

If you’re in sectors like finance, healthcare, manufacturing, or even running a small business with a basic cybersecurity plan, this risk is even more urgent.

This isn’t meant to scare you—it’s a call to action. Quantum-safe encryption is no longer a theoretical conversation. It’s a practical step that should be part of your roadmap now.

How to Start Preparing Today

1. Audit Your Current Cryptography
Make a full inventory of where and how your organization uses encryption: SSL/TLS, VPN tunnels, encrypted backups, customer databases, email systems. Pair that with your business risk management approach, similar to how NISTIR 8286 integrates cybersecurity and business risk.

2. Explore NIST-Approved PQC Algorithms
NIST has already standardized several post-quantum algorithms like CRYSTALS-Kyber and CRYSTALS-Dilithium. These are the building blocks of future-proof security.
Companies should start testing these algorithms in non-production environments now. You don’t want your first encounter with them to be during a live attack.

3. Invest in Hybrid Solutions
A hybrid encryption setup combines current algorithms with quantum-safe ones, giving you the best of both worlds. It’s the bridge to a full PQC future and reduces the risk during the transition period.

4. Work With Trusted Security Partners
Not sure where to start? Partner with top-tier cybersecurity firms. Here are some helpful resources to start your search:

Best cyber incident response companies for emergency preparedness.
Top cybersecurity companies offering cutting-edge PQC readiness services.
For smaller organizations, check out cybersecurity support tailored to small companies.

5. Train Your Team
Quantum threats aren’t just a technical challenge—they’re a mindset shift. Upskill your IT and security teams now. Even basic exposure, like setting up secure environments in Termux or experimenting with tools like Netcat, can build valuable intuition for more advanced projects.

6. Stay Informed and Adaptive
Post-quantum standards are evolving fast. Make ongoing research a priority—follow updates from NIST, keep an eye on your vendors, and revisit your security posture quarterly.

The Role of VPNs and Network Security

Many of us rely on VPNs for privacy. But in a post-quantum world, not all VPNs will be secure. Start researching services that are working on quantum-safe protocols. You can check out my VPNs to use with Termux guide for a breakdown of providers that are more forward-thinking.

And don’t overlook your network basics. Follow practical network security tips and ensure your routers, firewalls, and endpoint devices are ready for protocol upgrades when they roll out.

Why Acting Now Gives You the Edge

Being an early adopter means:

Your systems are ahead of attackers.
You’re positioned as a security-conscious partner or vendor.
You avoid the costly scramble when everyone else is rushing to implement PQC under pressure.

Think of this as similar to preparing for other complex threats, like ransomware or advanced phishing campaigns. (If you’re still struggling with phishing, check out the MaxPhisher guide to understand just how simple these attacks can be to launch.)

Final Thoughts

Post-quantum encryption isn’t a problem for “future you.” It’s a present-day priority. The sooner you start auditing, testing, and transitioning, the smoother your path will be when quantum computing reaches that critical tipping point.

Don’t wait until your encrypted backups, VPN traffic, or customer databases are cracked open. By blending proactive planning, the right partners, and continuous learning, you can build a defense strategy that keeps you safe in both today’s digital landscape and tomorrow’s quantum-powered world.

Preparing for Post-Quantum Encryption Today (Yes, Now!)

Table of contents