The abstract below provides an overview of the chapter and explains how quantum computing would impact security and cryptography.
Quantum technologies are redefining the landscape of science, security, and innovation ... Cryptography Standardization Process, National
# What Is Quantum Security? Quantum security is the practice of protecting information and communications from the risks created by quantum computing. Post-quantum cryptography, or PQC, is a set of encryption methods designed to remain secure even when large-scale quantum computers exist. For most organizations, PQC offers the most practical, software-deployable path to quantum-safe security today, while QKD and QRNG continue to evolve as complementary technologies for high-assurance environments. N. Islam, Deepika Ghai (Eds.), Quantum Computing, Cyber Security and Cryptography](https://link.springer.com/book/10.1007/978-981-96-4948-8). ## Quantum security FAQs. Quantum safe security is the use of cryptographic methods, such as post-quantum algorithms, designed to remain secure even if large-scale quantum computers become practical. A quantum secure network uses quantum-resistant cryptography or quantum key distribution to protect data in transit. Post-quantum cryptography (PQC) uses new math-based algorithms that run on classical computers to resist quantum attacks. Get the facts on resisting the quantum computing threat straight from PANW’s solutions documentation.](https://docs.paloaltonetworks.com/network-security/quantum-security/administration/quantum-security-concepts). Dive into an immersive overview on quantum threats, PQC, and NIST’s new standards.](https://www.paloaltonetworks.com/resources/ebooks/quantum-security).
[Skip to content](https://www.ssh.com/academy/how-quantum-computing-threats-impact-cryptography-and-cybersecurity#main-content). * [Cloud Computing](https://www.ssh.com/academy/cloud-computing-definition). * [Cloud Computing Security](https://www.ssh.com/academy/cloud/computing-security). * [HIPAA](https://www.ssh.com/academy/compliance/hipaa/security-rule). * [NIST 7966](https://www.ssh.com/academy/compliance/nist-7966). * [NIST 800-53](https://www.ssh.com/academy/compliance/nist-800-53). * [Understanding PAM Standards](https://www.ssh.com/academy/compliance/understanding-privileged-access-management-standards-iso-nist-and-more). * [Cryptography Explained](https://www.ssh.com/academy/cryptography). * [Cryptography and the Quantum Threat](https://www.ssh.com/academy/cryptography/what-is-quantum-safe-cryptography). * [Encryption Key Management](https://www.ssh.com/academy/cryptography/encryption-key-management). * [Quantum Computing & Post-Quantum Algorithms](https://www.ssh.com/academy/cryptography/quantum-computing-resilient-algorithms). * [What is Identity and Access Management (IAM)?](https://www.ssh.com/academy/iam). * [Just-in-Time Security Tokens](https://www.ssh.com/academy/iam/just-in-time-security-tokens). * [IoT Security](https://www.ssh.com/academy/iot). * [What is OT Security?](https://www.ssh.com/academy/operational-technology-ot-security). * [Best OT Security Solutions](https://www.ssh.com/academy/operational-technology/best-ot-security-solutions-to-protect-systems). * [ICS OT Security](https://www.ssh.com/academy/operational-technology/ics-ot-security-current-threats-and-solutions). * [Navigating OT Security Standards](https://www.ssh.com/academy/operational-technology/navigating-ot-security-standards-guide-to-safer-operations). * [PAM and IACS Integration](https://www.ssh.com/academy/operational-technology/seamless-pam-iacs-integration-for-enhanced-security). * [PAM for Energy Sector](https://www.ssh.com/academy/pam/securing-energy-sector-ics-with-privileged-access-management-solutions). * [PrivX for Forestry Industry](https://www.ssh.com/academy/pam/securing-forestry-industry-control-systems-with-privx-hybrid-pam). * [Passwordless Authentication - Implementation](https://www.ssh.com/academy/secrets-management/how-to-implement-passwordless-authentication-in-organization-with-ssh-communications-security). 1](https://www.ssh.com/academy/secrets-management/why-going-passwordless-is-future-of-cybersecurity). * [AI in PAM for Predictive Security](https://www.ssh.com/academy/pam/leveraging-machine-learning-and-ai-in-privileged-access-management-for-predictive-security). * [Automating PAM](https://www.ssh.com/academy/pam/how-automating-privileged-access-management-transforms-security-strategy). * [KPIs for PAM](https://www.ssh.com/academy/pam/key-performance-indicators-for-privileged-access-management). * [Least Privilege](https://www.ssh.com/academy/pam/what-is-least-privilege). * [PAM Checklist](https://www.ssh.com/academy/pam/stay-secure-essential-privileged-access-management-checklist). * [PAM for Pharmaceuticals Data Security](https://www.ssh.com/academy/pam/leveraging-pam-for-pharmaceutical-data-security). * [What is Secure Shell (SSH)?](https://www.ssh.com/academy/ssh). [SSH Communications Security](http://ssh.com/about) provides a [suite of quantum-safe solutions](https://www.ssh.com/solutions/quantum-safe-cryptography-qsc-security-solutions) designed to protect encrypted data, secure privileged access, and ensure compliance with emerging cryptographic standards. * [Quantum Readiness](https://www.ssh.com/solutions/quantum-safe-cryptography-qsc-security-solutions). * [Government](https://www.ssh.com/solutions/federal-government-zero-trust-and-quantum-security). * [NQX Quantum-Safe Encryption](https://www.ssh.com/products/nqx).
[Platform](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/). [Solutions](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#). [Customers](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#). [Partners](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#). [FAIR](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#). [Why SAFE?](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#). [Resources](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#). [Company](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#). 1. [What is Quantum Computing?](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#What-is-Quantum-Computing--0). 1. [Key Differences from Classical Computing](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#Key-Differences-from-Classical-Computing-1). 2. [Impact on Computational Speed](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#Impact-on-Computational-Speed-2). 2. [Quantum Computing in Cybersecurity](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#Quantum-Computing-in-Cybersecurity-3). 1. [Current Use Cases](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#Current-Use-Cases-4). 3. [Potential Cybersecurity Risks with Quantum Computing](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#Potential-Cybersecurity-Risks-with-Quantum-Computing-5). 4. [Practical Applications for Cybersecurity Professionals](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#Practical-Applications-for-Cybersecurity-Professionals-6). 5. [The Future of Quantum Computing in Cybersecurity](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#The-Future-of-Quantum-Computing-in-Cybersecurity-7). 6. [Frequently Asked Questions](https://safe.security/resources/insights/understanding-quantum-computing-in-cybersecurity/#-------------------Frequently-Asked-Questions-----------------8). At its core, [quantum computing](https://www.ibm.com/think/topics/quantum-computing?utm_medium=website&utm_source=direct&utm_campaign=safe-security) uses the fundamental principles of quantum mechanics—such as qubits, superposition, and entanglement—to process data at significantly faster rates than classical computers for certain types of problems. Quantum Computing](https://safe.security/wp-content/uploads/Traditional-vs.-Quantum-Computing-1024x576.png). However, future large-scale quantum computers could break these encryption standards by leveraging [Shor’s Algorithm](https://www.classiq.io/insights/shors-algorithm-explained?utm_medium=website&utm_source=direct&utm_campaign=safe-security), a quantum algorithm that efficiently factors large prime numbers and computes discrete logarithms, rendering RSA and ECC encryption vulnerable. **Solution:** Quantum-resistant encryption algorithms, such as [lattice-based cryptography](https://www.redhat.com/en/blog/post-quantum-cryptography-lattice-based-cryptography?utm_medium=website&utm_source=direct&utm_campaign=safe-security), are being developed to mitigate this risk. As part of its [Post-Quantum Cryptography (PQC) Standardization Project,](https://csrc.nist.gov/projects/post-quantum-cryptography?utm_medium=website&utm_source=direct&utm_campaign=safe-security) NIST has been evaluating and selecting encryption algorithms designed to withstand attacks from quantum computers.
Quantum cryptography is a set of methods that uses the quirky — but well-understood — rules of quantum mechanics to securely encrypt, transmit and decode information. Quantum cryptography employs quantum devices, such as sensors capable of recording individual particles of light (photons), to protect data from an adversarial attack. ### **What are some of the challenges in employing quantum cryptography to securely transmit and receive data?**. For example, many quantum encryption systems encode information using photons. Researchers rely on quantum randomness to securely transmit information. The quantum-based method generates digital bits (1s and 0s) using photons and is part of an ongoing effort to enhance NIST’s public randomness beacon, which broadcasts random bits for applications such as secure computation involving computers at multiple locations on a network. ### **How can quantum cryptography secure the processing of our private data on remote computer networks?**. Scientists are working to use quantum cryptography to ensure the security of our data beyond simple communication.
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Quantum computing will transform data security. It will prove certain old assumptions wrong, accelerate the necessity of quantum-resistant