It\u2019s time to get serious about post-quantum security. Here\u2019s where to start. | CyberScoop<\/title> <meta name=\"description\" content=\"Security standards like RSA could be obsolete by 2029. Chris Hickman breaks down the "harvest now, decrypt later" threat and why leaders must adopt quantum-resistant algorithms before the invisible arrival of Q-Day.\"> <link rel=\"canonical\" href=\"https:\/\/cyberscoop.com\/post-quantum-cryptography-pqc-strategy-q-day-security-op-ed\/\"> <meta property=\"og:locale\" content=\"en_US\"> <meta property=\"og:type\" content=\"article\"> <meta property=\"og:title\" content=\"It\u2019s time to get serious about post-quantum security. Here\u2019s where to start.\"> <meta property=\"og:description\" content=\"Security standards like RSA could be obsolete by 2029. 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href=\"https:\/\/cyberscoop.com\/post-quantum-cryptography-pqc-strategy-q-day-security-op-ed\/#main\" class=\"skip-to-content-link visually-hidden-focusable\">Skip to main content<\/a> <\/p>\n<div class=\"ad ad--top ad--top-desktop\">\n<div class=\"ad__inner\"> <span class=\"screen-reader-text\">Advertisement<\/span> <\/div>\n<\/div>\n<p> <main id=\"main\" role=\"main\" tabindex=\"-1\"> <\/p>\n<div class=\"ad ad--top ad--top-mobile\">\n<div class=\"ad__inner\"> <span class=\"screen-reader-text\">Advertisement<\/span> <\/div>\n<\/div>\n<section id=\"stickybar\" class=\"stickybar stickybar--newsletter js-stickybar\" readability=\"0.82\"> <button class=\"stickybar__close js-stickybar-close\" aria-controls=\"stickybar\"> <svg class=\"icon icon--close\" width=\"21\" height=\"22\" viewBox=\"0 0 21 22\" fill=\"none\"><path d=\"m.822.518-.805.805L9.695 11 .017 20.678l.805.805 9.678-9.678 9.677 9.678.806-.805L11.305 11l9.678-9.677-.806-.805-9.677 9.677L.822.518Z\" fill=\"currentColor\" \/><\/svg> <span class=\"visually-hidden\">Close<\/span> <\/button> <\/section>\n<article class=\"single-article content\">\n<div class=\"single-article__container js-single-article-content\">\n<header class=\"single-article__header \" readability=\"26.777988614801\">\n<div class=\"single-article__header-content\" readability=\"37.248046875\">\n<ul class=\"single-article__eyebrow\">\n<li class=\"single-article__category\"> <a class=\"single-article__category-link\" href=\"https:\/\/cyberscoop.com\/post-quantum-cryptography-pqc-strategy-q-day-security-op-ed\/\"> <span>Commentary<\/span> <\/a> <\/li>\n<\/ul>\n<p> Quantum computing promises a revolution in science, but it also signals the end of current security standards. Here is why enterprises must transition to post-quantum cryptography before “harvest now, decrypt later” attacks take hold. <\/p>\n<p>  <br \/>\n<audio id=\"audio-player\" src=\"https:\/\/wp-tts-cdn.api.scpnewsgrp.com\/cyberscoop\/88248\/english.openai.mp3\"><\/audio> <\/p>\n<div readability=\"11\">\n<div>\n<p>Listen to this article<\/p>\n<p>  <\/p>\n<p>0:00<\/p>\n<\/p><\/div>\n<p>  <\/p>\n<p> <span id=\"tts-tooltip\">Learn more.<\/span> <span> This feature uses an automated voice, which may result in occasional errors in pronunciation, tone, or sentiment. <\/span> <\/p>\n<\/div>\n<p>  <\/div>\n<div class=\"single-article__cover-wrap\">\n<figure class=\"single-article__cover\"> <img data-recalc-dims=\"1\" fetchpriority=\"high\" width=\"640\" height=\"426\" src=\"https:\/\/i0.wp.com\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start.jpg?resize=640%2C426&ssl=1\" class=\"single-article__cover-image wp-post-image\" alt=\"Quantum computing processor representing the transition to post-quantum cryptography.\" decoding=\"async\" fetchpriority=\"high\" srcset=\"https:\/\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start-1.jpg 2121w, https:\/\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start-1.jpg?resize=300,200 300w, https:\/\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start-1.jpg?resize=768,512 768w, https:\/\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start-1.jpg?resize=1024,683 1024w, https:\/\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start-1.jpg?resize=1536,1024 1536w, https:\/\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start-1.jpg?resize=2048,1365 2048w, https:\/\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start-1.jpg?resize=600,400 600w, https:\/\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start-1.jpg?resize=252,168 252w, https:\/\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start-1.jpg?resize=506,337 506w, https:\/\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start-1.jpg?resize=1013,675 1013w, https:\/\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start-1.jpg?resize=1265,843 1265w\" sizes=\"(max-width: 1013px) 100vw, 1013px\"><figcaption> (Getty Images) <\/figcaption><\/figure>\n<\/p><\/div>\n<\/header>\n<div class=\"single-article__content\">\n<div class=\"single-article__content-inner has-drop-cap\"> <html readability=\"61.574317635412\"><body readability=\"126.06376983538\"><\/p>\n<p>After decades of development, quantum computing is now becoming increasingly available for advanced scientific and commercial use. The potential marvels range from accelerating drug discovery and materials science, to optimizing complex logistics and financial modeling.<\/p>\n<p>But there\u2019s a paradox to this trend: <a href=\"https:\/\/cyberscoop.com\/tag\/quantum-computing\/\">Quantum computing<\/a> also poses a growing threat to data security.<\/p>\n<p>The risk is that the algorithms and protocols currently used to secure devices, applications and computer systems could eventually be broken by malicious actors using quantum computing, compromising even the strongest security measures. By some estimates, widely used encryption standards such as RSA and ECC could be cracked by quantum computers as soon as 2029\u2014a doomsday known as \u201cQ-Day,\u201d when current security standards would be rendered ineffective by quantum computing\u2019s number-calculating prowess.<\/p>\n<p>The possibility that quantum computing could break today\u2019s data protection protocols is prompting chief security officers and chief technology officers to ramp up countermeasures. They\u2019re doing it with <a href=\"https:\/\/cyberscoop.com\/tag\/post-quantum-cryptography\/\">post-quantum cryptography<\/a> (PQC), a niche area of cybersecurity that is rising in priority across the business world. Lack of preparedness could be costly, with <a href=\"https:\/\/www.americanbanker.com\/news\/citi-banks-face-3-trillion-risk-from-quantum-cyberattacks\">one report<\/a> putting the potential U.S. economic cost of a quantum attack at more than $3 trillion. Even before that potential calamity, the current average cost of a data breach is upwards of <a href=\"https:\/\/www.ibm.com\/reports\/data-breach\">$10 million<\/a>, and that number will only increase commensurate to the scale of a quantum-induced breach.<\/p>\n<div class=\"ad ad--inline_1 \">\n<div class=\"ad__inner\"> <span class=\"screen-reader-text\">Advertisement<\/span> <\/div>\n<\/div>\n<p>That is why the quantum threat should not be treated as a concern only for forward-thinking executives. It must become a board-level issue for every enterprise. Organizations should launch a comprehensive PQC initiative that builds enterprise-wide awareness and updates digital systems and data assets to be resilient against quantum attacks.<\/p>\n<p>Waiting until Q-Day would be mistake because people will not know when it occurs. It probably will not arrive with press releases or product announcements. Instead, in may unfold quietly as attackers try to maximize what they can steal before anyone notices. The reality is that sensitive data is already at risk of being stolen and stored away so it can be decoded \u2013 an attack referred to as \u201charvest now, decrypt later\u201d- when Q-Day is a reality. Security pros need to give this immediate attention, even if the ultimate threat appears to be a few years away.<\/p>\n<h4 class=\"wp-block-heading\" id=\"h-quantum-proofing-data-at-scale\">Quantum-proofing data at scale<\/h4>\n<p>Security teams are usually focused on immediate threats, but they still have a window of opportunity to prepare for Q-Day, as long as they start now. <\/p>\n<p>One interim measure underway is the transition to more robust versions of the digital certificates and keys that are already pervasive in business and everyday life. Such certificates, which act as identity credentials, are used to authenticate billions of users, devices, documents and other forms of communications and endpoints. The certificates contain cryptographic keys. Security teams are phasing in \u201c47-day keys,\u201d which are designed to expire and be replaced within 47 days\u2014much more frequently than the current generation. It\u2019s a step in the right direction, but not enough.<\/p>\n<div class=\"ad ad--inline_1 \">\n<div class=\"ad__inner\"> <span class=\"screen-reader-text\">Advertisement<\/span> <\/div>\n<\/div>\n<p>Establishing a hardened PQC defense requires much more than a standard software patch or upgrade to the <a href=\"https:\/\/cyberscoop.com\/tag\/public-key-infrastructure\/\">public key infrastructure<\/a> (PKI) used most everywhere to manage digital certificates and encrypt data. An enterprise-wide PQC strategy must be adopted and implemented at scale.<\/p>\n<p>Consider the rapid rise of <a href=\"https:\/\/cyberscoop.com\/tag\/agentic-ai\/\">agentic AI<\/a>, where organizations may need to assign digital identities to thousands or even millions of AI agents. That will require a level of authentication that goes well beyond existing infrastructure.<\/p>\n<p>These projects will be led by the CISO but planning and execution should include other business leaders because post-quantum security must reach every part of the organization\u2019s digital environment. Boards also need to be involved, given the governance stakes and the significant capital investment required. <\/p>\n<h4 class=\"wp-block-heading\" id=\"h-developing-a-multi-year-multi-pronged-strategy\">Developing a multi-year, multi-pronged strategy<\/h4>\n<p>Organizations in regulated industries\u2014banking, healthcare and government, for example\u2014are generally a step ahead in bracing for the post-quantum threat. Regardless of industry, though, few are fully prepared because readiness requires a detailed picture of an organization\u2019s end-to-end data and security landscape.<\/p>\n<p>In my experience, that holistic view is a rarity. For CISOs and their line-of-business colleagues, a good starting point is creating a comprehensive inventory of systems and data across the enterprise, then prioritizing what needs to be safeguarded.<\/p>\n<div class=\"ad ad--inline_1 \">\n<div class=\"ad__inner\"> <span class=\"screen-reader-text\">Advertisement<\/span> <\/div>\n<\/div>\n<p>Another important step is to begin testing and adopting the latest quantum-resistant algorithms and protocols that have been standardized by <a href=\"https:\/\/cyberscoop.com\/tag\/national-institute-of-standards-and-technology-nist\/\">NIST<\/a>. A growing range of PKI products and platforms support those specifications. That\u2019s essential because the only way enterprises will be able to orchestrate, monitor and manage the scope of deployment is through automation.<\/p>\n<p>Such updates are vital, but this isn\u2019t a matter of simply replacing pre-quantum specs with newer ones. Because PQC will be a multi-year undertaking, organizations must bridge the gap between old and new. The best strategy for some will be a hybrid approach that combines classical cryptography and next-gen algorithms, though standardization remains a work in progress. Other organizations are driving toward a \u201cpure\u201d or unblended post-quantum model.<\/p>\n<p>As for those harvest attacks, the best defense is straightforward: Encrypt your most sensitive long-lived data with quantum-resistant algorithms ASAP.<\/p>\n<h4 class=\"wp-block-heading\" id=\"h-pqc-is-a-shared-responsibility\">PQC is a shared responsibility<\/h4>\n<p>Unfortunately, there is no finish line in the race to quantum-era security. And even if an organization locks down its systems against emerging threats, there\u2019s no guarantee that customers and business partners will do the same.<\/p>\n<p> Many vulnerabilities will still remain, which is why the business case for PQC includes protecting customer data and safeguarding reputation and brand trust as digital threats evolve quickly. Even today, a major breach can cost millions and inflict lasting damage to a corporate brand.<\/p>\n<div class=\"ad ad--inline_1 \">\n<div class=\"ad__inner\"> <span class=\"screen-reader-text\">Advertisement<\/span> <\/div>\n<\/div>\n<p>Quantum computing promises to bring many new capabilities to business and society\u2014from transforming supply chain optimization and risk analysis, to enabling breakthrough discoveries in medicine and climate science. But the potential risks are just as substantial. After years of watching and waiting for quantum, business leaders have little choice but to take action.<\/p>\n<p><em>Chris Hickman is the chief security officer of Keyfactor, a leading provider of quantum-safe security solutions. <\/em><\/p>\n<p> <\/body> <\/p>\n<footer class=\"single-article__footer\" readability=\"0.98470948012232\">\n<div class=\"author-card\" readability=\"9\">\n<div class=\"author-card__avatar\">\n<figure class=\"author-card__image-wrap\"> <img data-recalc-dims=\"1\" decoding=\"async\" class=\"author-card__image\" src=\"https:\/\/i0.wp.com\/ddi.mohflo.net\/wp-content\/uploads\/2026\/03\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start.png?w=640&ssl=1\" alt=\"Chris Hickman\"> <\/figure>\n<\/p><\/div>\n<p><h4 class=\"author-card__name\">Written by Chris Hickman<\/h4>\n<p> Chris Hickman is the chief security officer with Keyfactor, a leading provider of quantum-safe security solutions. <\/p>\n<\/p><\/div>\n<div class=\"single-article__tags-container\">\n<h4 class=\"single-article__tags-title\">In This Story<\/h4>\n<\/p><\/div>\n<\/footer>\n<p> <\/html><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"single-article__ads js-single-article-sidebar\">\n<div class=\"ad ad--sidebar js-single-article-sidebar-5 ad--rightrail_1 \">\n<div class=\"ad__inner\"> <span class=\"screen-reader-text\">Advertisement<\/span> <\/div>\n<\/div>\n<div class=\"ad ad--sidebar js-single-article-sidebar-4 ad--rightrail_2 \">\n<div class=\"ad__inner\"> <span class=\"screen-reader-text\">Advertisement<\/span> <\/div>\n<\/div>\n<div class=\"ad ad--sidebar js-single-article-sidebar-3 ad--rightrail_3 \">\n<div class=\"ad__inner\"> <span class=\"screen-reader-text\">Advertisement<\/span> <\/div>\n<\/div><\/div>\n<\/article>\n<div class=\"popular-stories popular-stories--single-post\">\n<div class=\"popular-stories__container\">\n<h2 class=\"popular-stories__title\"> More Scoops <\/h2>\n<p>  <\/div>\n<p>\n<\/div>\n<p> <\/p>\n<section class=\"latest-podcasts\">\n<h2 class=\"latest-podcasts__title\"> Latest Podcasts\t<\/h2>\n<\/section>\n<div class=\"top-categories\">\n<div class=\"top-categories__container\">\n<h3 class=\"top-categories__category-title\">Government<\/h3>\n<\/p><\/div>\n<div class=\"top-categories__container\">\n<h3 class=\"top-categories__category-title\">Technology<\/h3>\n<\/p><\/div>\n<\/p><\/div>\n<p> <\/main> <\/p>\n<div class=\"ad ad--bottom \">\n<div class=\"ad__inner\"> <span class=\"screen-reader-text\">Advertisement<\/span> <\/div>\n<\/div>\n<div id=\"interstitial\" class=\"welcome__container\"> <button id=\"close-modal-1\" class=\"welcome__clickable_area\"><\/button> <\/p>\n<div class=\"welcome__ad_wrapper\">\n<p> <button id=\"close-modal-3\" class=\"welcome__continue-button\">Continue to CyberScoop<\/button> <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>   <\/body> <a href=\"https:\/\/cyberscoop.com\/post-quantum-cryptography-pqc-strategy-q-day-security-op-ed\/\">Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>It\u2019s time to get serious about post-quantum security. 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{"id":8435,"date":"2026-03-17T05:00:00","date_gmt":"2026-03-17T10:00:00","guid":{"rendered":"https:\/\/cyberscoop.com\/?p=88248"},"modified":"2026-03-17T05:00:00","modified_gmt":"2026-03-17T10:00:00","slug":"its-time-to-get-serious-about-post-quantum-security-heres-where-to-start","status":"publish","type":"post","link":"https:\/\/ddi.mohflo.net\/index.php\/2026\/03\/17\/its-time-to-get-serious-about-post-quantum-security-heres-where-to-start\/","title":{"rendered":"It\u2019s time to get serious about post-quantum security. Here\u2019s where to start."},"content":{"rendered":"