Quantum Computing in OT Security

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Quantum computing isn’t just science fiction anymore. It’s becoming real, and it could shake up how we protect OT systems like power plants, factories, and water grids.

What is Quantum Computing?

Instead of using regular bits (0 or 1), quantum computers use qubits, which can be 0 and 1 at the same time. That makes them much faster at solving certain problems including cracking today’s encryption.

Why Is This a Problem for OT?

  • Current encryption could break
    Quantum computers could crack RSA and ECC, the encryption many OT systems rely on.

  • OT devices last for years
    Some equipment runs for 10, 20, even 30 years. They may still be around when quantum attacks are possible.

  • Steal now, unlock later
    Hackers might steal encrypted data today and wait until they have a quantum computer to unlock it.

How Can Quantum Help Too?

  • New stronger encryption
    Post-quantum cryptography is being developed to protect against these future threats.

  • Better randomness
    Quantum tech can create more secure encryption keys using real randomness.

What Can You Do Now?

  • Learn about post-quantum encryption standards from NIST

  • Review which OT systems need to stay secure for the next 10+ years

  • Follow updates in your industry’s "quantum readiness" plans

Final Thought

Quantum computing could be the biggest change in cybersecurity ever. It’s both a threat and an opportunity. Getting ready now helps keep your OT systems safe later.

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