{"id":703677,"date":"2025-11-25T05:59:12","date_gmt":"2025-11-25T05:59:12","guid":{"rendered":"https:\/\/www.capgemini.com\/gb-en\/?p=703677"},"modified":"2026-02-26T10:04:57","modified_gmt":"2026-02-26T10:04:57","slug":"green-cybersecurity-sustainability","status":"publish","type":"post","link":"https:\/\/www.capgemini.com\/gb-en\/insights\/expert-perspectives\/green-cybersecurity-sustainability\/","title":{"rendered":"Cyber security and the environment: can we make cyber security green?"},"content":{"rendered":"\n<header class=\"wp-block-cg-blocks-hero-blogs header-hero-blogs\"><div class=\"container\"><div class=\"hero-blogs\"><div class=\"hero-blogs-content-wrapper\"><div class=\"row\"><div class=\"col-12\"><div class=\"header-title\"><h1>Cyber security and the environment: can we make cyber security green?<\/h1><\/div><\/div><\/div><\/div><div class=\"hero-blogs-bottom\"><div class=\"header-author\"><div class=\"author-img\"><img decoding=\"async\" src=\"https:\/\/www.capgemini.com\/gb-en\/wp-content\/uploads\/sites\/5\/2025\/04\/matt-bancroft.jpg?w=200&amp;quality=10\" alt=\"\" loading=\"lazy\"\/><\/div><div class=\"author-name-date\"><h5 class=\"author-name\">Matthew Bancroft<\/h5><h5 class=\"blog-date\">Nov 25, 2025<\/h5><\/div><\/div><div class=\"brand-image\"><\/div><\/div><\/div><\/div><\/header>\n\n\n\n<section class=\"wp-block-cg-blocks-group section section--article-content\"><div class=\"article-main-content\"><div class=\"container\"><div class=\"row\"><div class=\"col-12 col-md-1\"><nav class=\"article-social\"><ul class=\"social-nav\"><li class=\"ip-order-fb\"><a href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https:\/\/www.capgemini.com\/gb-en\/?p=703677\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"opens in a new window\"><i aria-hidden=\"true\" class=\"icon-fb\"><\/i><span class=\"sr-only\">Facebook<\/span><\/a><\/li><li class=\"ip-order-li\"><a href=\"https:\/\/www.linkedin.com\/sharing\/share-offsite\/?url=https:\/\/www.capgemini.com\/gb-en\/?p=703677\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"opens in a new window\"><i aria-hidden=\"true\" class=\"icon-li\"><\/i><span class=\"sr-only\">Linkedin<\/span><\/a><\/li><\/ul><\/nav><\/div><div class=\"col-12 col-md-11 col-lg-10\"><div class=\"article-text article-quote-text\">\n<h3 class=\"wp-block-heading\" id=\"h-the-fourth-installment-in-a-cyber-security-series-from-capgemini-and-renewableuk-explores-how-cyber-security-can-negatively-impact-the-environment-the-environmental-impact-of-cyber-security-incidents-and-how-this-can-be-mitigated-by-making-cyber-security-sustainable-by-design\">The fourth installment in a cyber security series from Capgemini and RenewableUK explores how cyber security can negatively impact the environment, the environmental impact of cyber security incidents, and how this can be mitigated by making cyber security sustainable by design.<\/h3>\n\n\n\n<p>Sustainability and cyber security have traditionally occupied separate spheres; one rooted in environmental stewardship, the other in digital defense, which is regarded as so critical it frequently overrides the former. However, as the UK accelerates towards Clean Power 2030, the convergence of these two disciplines has become not just logical but essential.<\/p>\n\n\n\n<p>The relationship between sustainability and cyber security can be seen as a double-edged sword. On one side lies the environmental impact of controls, and on the other we find the environmental consequences of neglecting cyber security.<\/p>\n\n\n\n<p>No sector is better positioned to bridge this divide than the renewable energy sector. Companies across our industry are at the forefront of building a more sustainable world. Their technologies&nbsp;<a href=\"https:\/\/www.ren21.net\/renewable-energy-and-sustainability-report-2024\/#:~:text=The%20report%20concludes%20that%20the,adoption%20of%20existing%20best%20practice\" target=\"_blank\" rel=\"noreferrer noopener\">produce far fewer emissions<\/a>, support land restoration, safeguard public health, and provide the pathway to energy security. Public support is also strong, with&nbsp;<a href=\"https:\/\/www.renewableuk.com\/news-and-resources\/press-releases\/polling-shows-most-feel-frustrated-when-renewable-energy-projects-are-blocked-by-a-small-number-of-objectors\/\" target=\"_blank\" rel=\"noreferrer noopener\">recent polling<\/a>&nbsp;by Opinium Research showing widespread backing for clean energy projects and the infrastructure needed to support them. At the same time, Critical National Infrastructures are a key target for malicious actors due to the vital role they play in society. In fact, the National Cyber Security Centre (NCSC)&nbsp;<a href=\"https:\/\/www.ncsc.gov.uk\/news\/ncsc-warns-enduring-significant-threat-to-uks-critical-infrastructure\" target=\"_blank\" rel=\"noreferrer noopener\">2023 annual report<\/a>&nbsp;called for energy companies to be particularly vigilant, due to the rise of state-aligned actors as a new and emerging threat.<\/p>\n\n\n\n<p>All of this raises an important question: how can we ensure that digital resilience does not undermine environmental goals, whilst still delivering robust protection? The answer lies in making security \u2018sustainable by design\u2019.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-the-double-edged-sword-exploring-the-balance-between-cyber-security-and-sustainability\">The double-edged sword: exploring the balance between cyber security and sustainability<\/h3>\n\n\n\n<p>The environmental toll of cyber security systems can often be overlooked. In fact,&nbsp;<a href=\"https:\/\/cyber4tomorrow.fr\/en\/actions\/carbon-footprint-assessment-of-cybersecurity\/\" target=\"_blank\" rel=\"noreferrer noopener\">research has shown<\/a>&nbsp;that cyber security measures can account for up to 17% of IT\u2019s environmental impact.<\/p>\n\n\n\n<p>The&nbsp;<a href=\"https:\/\/cyber4tomorrow.fr\/en\/actions\/carbon-footprint-assessment-of-cybersecurity\/\" target=\"_blank\" rel=\"noreferrer noopener\">most carbon-intensive element of cyber security<\/a>&nbsp;relates to resilience. This encompasses systems that ensure business continuity during periods of disruption, whether from cyberattacks or natural disasters. These processes rely heavily on data replication and backup storage capabilities, with controls requiring real-time monitoring, such as vulnerability scans, in order to prepare for, prevent and mitigate the impact of any outages on a business\u2019s operations.<\/p>\n\n\n\n<p>These processes all demand a large amount of energy. Additionally, as threats to renewable energy companies escalate, whether driven by shifting geopolitical dynamics or the rapid evolution of emerging technologies, malicious actors gain the tools to launch ever more sophisticated and far-reaching attacks. In response, companies must deploy increasingly complex cyber security controls, which further exacerbates their carbon footprint.<\/p>\n\n\n\n<p>It&#8217;s important to note that, when it comes to energy companies, the consequences of cyber incidents extend far beyond digital disruption. In fact, they can have profound environmental impacts. A striking example is the&nbsp;<a href=\"https:\/\/attack.mitre.org\/campaigns\/C0020\/\" target=\"_blank\" rel=\"noreferrer noopener\">Maroochy Water Breach<\/a>&nbsp;in Australia, where a malicious actor gained remote access to a wastewater system, manipulated pump operations and released 800,000 litres of raw sewage into local parks, rivers, and marine habitats. In another case, a&nbsp;<a href=\"https:\/\/www.independent.co.uk\/news\/long_reads\/cyber-warfare-saudi-arabia-petrochemical-security-america-a8258636.html\" target=\"_blank\" rel=\"noreferrer noopener\">cyberattack targeting a petrochemical facility<\/a>&nbsp;in Saudi Arabia nearly triggered an explosion.<\/p>\n\n\n\n<p>These incidents illustrate a critical truth: cyber security is not just a matter of operational continuity, it is a pillar of environmental protection. As the renewable energy sector matures and continues to scale up, it is vital to integrate robust, sustainable security practices both to safeguard digital infrastructure and protect the ecosystems that depend on it.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-making-resilience-sustainable-by-default\">Making resilience sustainable by default<\/h3>\n\n\n\n<p>Organisations should take a risk-based approach to make their cyber security operations more sustainable, whilst making themselves more resilient. As each organisation differs, a full evaluation of a company\u2019s IT systems should be conducted to introduce controls that balance cyber security and sustainability effectively. Continuing the theme of the environmental impact of controls related to resilience, some potential avenues to explore include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Strategising data duplication<\/strong>&nbsp;and focussing on critical data to reduce the need for further storage and power consumption.<\/li>\n\n\n\n<li><strong>Implementing differential backup<\/strong>&nbsp;so only changes made since the last backup are saved, rather than the entire system repeatedly.<\/li>\n\n\n\n<li><strong>Leveraging off-peak hours<\/strong>&nbsp;by scheduling backups when there is less demand across the grid, which often relies on imported gas at peak times.<\/li>\n\n\n\n<li><strong>Shortening non-essential data retention periods<\/strong>, as well as implementing data expiration policies to reduce the amount of power used.<\/li>\n\n\n\n<li><strong>Implementing an efficient data management lifecycle<\/strong>&nbsp;so data moves through stages of active use, archival and eventual deletion to ensure energy is not wasted on unused data.<\/li>\n<\/ul>\n\n\n\n<p>To complement this, organisations can promote \u2018green IT practices\u2019. Embedding such practices into daily routines both supports environmental goals and strengthens security, such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Turning devices off at the end of the day or while travelling to reduce both energy and your overall attack surface<\/li>\n\n\n\n<li>Regularly deleting unnecessary files and emails to conserve storage and reduce the risk of data breaches.<\/li>\n\n\n\n<li>Keeping software up to date to extend the lifespan of devices and patch vulnerabilities before they can be exploited.<\/li>\n<\/ul>\n\n\n\n<p>It is important to note that Green IT is a shared responsibility so, while IT and cyber security departments can encourage colleagues to partake, success hinges on the entire workforce\u2019s participation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-in-conclusion\">In conclusion<\/h2>\n\n\n\n<p>While cyber security and sustainability may be a double-edged sword, striking the right balance between the two empowers an organisation to become both digitally resilient and environmentally responsible, giving it a critical advantage in such a competitive market. Renewable energy companies can start by taking small steps to make their cyber practices more sustainable, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Conducting education and awareness activities on green IT practices, such as the ones listed above.<\/li>\n\n\n\n<li>Learning about the&nbsp;<a href=\"https:\/\/cyber4tomorrow.fr\/en\/actions\/deploying-the-methodology-for-assessing-the-carbon-footprint-of-cybersecurity\/\" target=\"_blank\" rel=\"noreferrer noopener\">methodology<\/a>&nbsp;to assess the carbon footprint of your cyber security.<\/li>\n\n\n\n<li>Leveraging the&nbsp;<a href=\"https:\/\/cyber4tomorrow.fr\/en\/actions\/deploying-the-methodology-for-assessing-the-carbon-footprint-of-cybersecurity\/\" target=\"_blank\" rel=\"noreferrer noopener\">series of free templates<\/a>&nbsp;to collect data and identify areas where you can improve your carbon footprint.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-continuous-resilience-for-tomorrow-s-threats\"><strong>Continuous Resilience for Tomorrow\u2019s Threats<\/strong><\/h3>\n\n\n\n<p>Cybersecurity at Capgemini is more than protection, it\u2019s a strategic enabler of growth, innovation and digital trust. We help organisations shift from reactive risk management to proactive resilience, aligning cyber strategy with business transformation.<\/p>\n\n\n\n<p>Our global network of Cyber Defence Centres, deep sector expertise, and future ready capabilities, from zero trust to Gen AI security, ensure continuous protection across your enterprise. We deliver adaptive governance, threat intelligence and cyber innovation that safeguard critical infrastructure, uphold societal values and empower confident operations at scale.<\/p>\n\n\n\n<p>Whether modernising enterprise wide security or influencing CxO strategy, Capgemini is your partner in building digital trust and securing tomorrow\u2019s opportunities.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/section>\n\n\n\n<section class=\"section section--expert-slider wrapper-people-slider wp-block-cg-blocks-wrapper-people-slider\"><div class=\"container\"><div class=\"content-title\"><h2 data-maxlength=\"34\" class=\"people-heading-title\">Meet our experts<\/h2><\/div><\/div><div class=\"slider slider-boxed\"><div class=\"container\"><div class=\"slider-window\"><div class=\"slider-list\">\t\t<div class=\"slide\">\n\t\t\t<div class=\"box\">\n\t\t\t\t<div class=\"row\">\n\t\t\t\t\t<div class=\"col-md-6 col-lg-4 box-img-wrapper\">\n\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.capgemini.com\/gb-en\/wp-content\/uploads\/sites\/5\/2025\/04\/matt-bancroft.jpg\" alt=\"Matthew Bancroft\"\/>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"col-md-6 col-lg-8 box-inner\">\n\t\t\t\t\t\t<div class=\"row title-social-media-header\">\n\t\t\t\t\t\t\t<div class=\"col-md-12 col-lg-6 mbl-social-icon\">\n\t\t\t\t\t\t\t\t<ul class=\"social-nav\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"col-md-12 col-lg-6 box-container\">\n\t\t\t\t\t\t\t\t<div class=\"box-title\">\n\t\t\t\t\t\t\t\t\t<h3 class=\"people-profile-title\">Matthew Bancroft<\/h3>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span>Senior Director, Digital Security and Trust<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"col-md-12 col-lg-6 social-box-container dkt-social-icon\">\n\t\t\t\t\t\t\t\t<ul class=\"social-nav\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"people-info\">Matt leads the private sector for Capgemini Invent UK providing cyber security consulting and technology advisory services focused on the specific risks in this sector and specialising in state-of-the-art innovation, cyber startups, strategic alliances, industrial and cloud security. Matt was originally a physicist and electrical engineer specialising in petrophysics in the oil and gas industry and has over 20 years\u2019 experience in cybersecurity and consulting, leading innovative and transformational people, practices and programs in complex multinational organisations. <\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\n\n\t\t<div class=\"slide\">\n\t\t\t<div class=\"box\">\n\t\t\t\t<div class=\"row\">\n\t\t\t\t\t<div class=\"col-md-6 col-lg-4 box-img-wrapper\">\n\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.capgemini.com\/gb-en\/wp-content\/uploads\/sites\/5\/2023\/12\/Nicole-Alley-Headshot-2021.png\" alt=\"Nicole Alley\"\/>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"col-md-6 col-lg-8 box-inner\">\n\t\t\t\t\t\t<div class=\"row title-social-media-header\">\n\t\t\t\t\t\t\t<div class=\"col-md-12 col-lg-6 mbl-social-icon\">\n\t\t\t\t\t\t\t\t<ul class=\"social-nav\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li><a aria-label=\"Linkedin\" target=\"_blank\" title=\"Opens in a new window\" href=\"https:\/\/www.linkedin.com\/in\/nicolealley\/\"><i aria-hidden=\"true\" class=\"icon-li\"><\/i><\/a><\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"col-md-12 col-lg-6 box-container\">\n\t\t\t\t\t\t\t\t<div class=\"box-title\">\n\t\t\t\t\t\t\t\t\t<h3 class=\"people-profile-title\">Nicole Alley<\/h3>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span>Vice President | Head of Renewables | Capgemini UK<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"col-md-12 col-lg-6 social-box-container dkt-social-icon\">\n\t\t\t\t\t\t\t\t<ul class=\"social-nav\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li><a aria-label=\"Linkedin\" target=\"_blank\" title=\"Opens in a new window\" href=\"https:\/\/www.linkedin.com\/in\/nicolealley\/\"><i aria-hidden=\"true\" class=\"icon-li\"><\/i><\/a><\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"people-info\">Nicole is responsible for leading Capgemini\u2019s Renewables business in the UK supporting renewables project developers, asset operators and equipment suppliers to scale and grow profitably, leveraging digital technologies. Part of Nicole\u2019s role includes driving growth in the work we do with climate technologies, where sustainability and transition to net zero is at the core. Nicole is passionate about decarbonising our planet, driving our sustainability agenda at a personal and corporate level. She has experience across Renewables, Energy Distribution, Energy Retail, Power Generation, Water, and Mining.<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div><\/div><\/div><div class=\"slider-nav\"><button class=\"slider-prev inactive\" aria-label=\"Slider-previous\" tabindex=\"-1\"><\/button><ul class=\"slider-paginator\"><\/ul><button class=\"slider-next\" aria-label=\"Slider-next\"><\/button><\/div><\/div><\/section>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The fourth installment in a cyber security series from Capgemini and RenewableUK explores how cyber security can negatively impact the environment, the environmental impact of cyber security incidents, and how this can be mitigated by making cyber security sustainable by design.<\/p>\n","protected":false},"author":301,"featured_media":703694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"cg_dt_proposed_to":[],"cg_seo_hreflang_relations":"[]","cg_seo_canonical_relation":"{\"uuid\":\"78081925-5b3c-4cf7-8e30-0db37cfd2099\",\"blogId\":\"5\",\"domain\":\"www.capgemini.com\",\"sitePath\":\"\/gb-en\/\",\"postLink\":\"https:\/\/www.capgemini.com\/gb-en\/insights\/expert-perspectives\/green-cybersecurity-sustainability\/\",\"postId\":703677,\"isSaved\":false,\"isCrossLink\":false,\"hasCrossLink\":false,\"hreflang\":\"\",\"link\":\"\"}","cg_seo_hreflang_x_default_relation":"","cg_dt_approved_content":true,"cg_dt_mandatory_content":false,"cg_dt_notes":"","cg_dg_source_changed":false,"cg_dt_link_disabled":false,"_yoast_wpseo_primary_brand":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","featured_focal_points":""},"categories":[1],"tags":[],"brand":[],"service":[],"industry":[435],"partners":[],"blog-topic":[151],"content-group":[],"class_list":["post-703677","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","industry-cybersecurity","blog-topic-cybersecurity"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.8 (Yoast SEO v22.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Green Cyber Security | Capgemini UK<\/title>\n<meta name=\"description\" content=\"Discover how Capgemini drives sustainable cyber security, reducing environmental impact and strengthening resilience. 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