How CISOs can prepare for the quantum cybersecurity threat

<p>Quantum computing will mark a revolutionary change in modern computing, as well as a pivotal shift in cybersecurity. As these powerful machines make their way from theory to reality, they threaten to unravel the encryption algorithms that organizations have relied on for years to protect their data and communications systems.</p>
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<p>Industry experts and government agencies, such as NIST, the U.S. Department of Homeland Security and the U.K.’s National Cyber Security Centre, have all sounded the alarm: CISOs, the time to start preparing for quantum computing is now.</p>
<p>Let’s look at how quantum computing threatens cybersecurity and how CISOs should start their post-quantum migration.</p>
<section class=”section main-article-chapter” data-menu-title=”How quantum computing disrupts traditional cybersecurity”>
<h2 class=”section-title”><i class=”icon” data-icon=”1″></i>How quantum computing disrupts traditional cybersecurity</h2>
<p>While quantum computers won’t replace classical computers, per se, they will complement them and excel at certain tasks. For example, due to a fundamental principle of quantum mechanics called superposition, qubits — unlike classic bits — can be both 1 and 0 at the same time or anything in between until measured. This enables <a href=”https://www.techtarget.com/searchdatacenter/tip/Classical-vs-quantum-computing-What-are-the-differences”>quantum computers to solve complex mathematical problems</a> much faster than classical computers.</p>
<p>Currently, however, qubits are <a target=”_blank” href=”https://www.nist.gov/cybersecurity/what-post-quantum-cryptography” rel=”noopener”>fragile and error-prone</a> because they are vulnerable to heat, vibrations and even cosmic radiation. However, scientists are on their way to developing more resilient and capable quantum computers. While the exact date is unknown, experts estimate it to be between 2030 and 2050.</p>
<p>The benefits of quantum computing’s speed and power come at a price: security.</p>
<p>Long-relied-upon cryptographic algorithms that have kept business-c

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