{"id":97373,"date":"2026-01-28T09:55:20","date_gmt":"2026-01-28T08:55:20","guid":{"rendered":"https:\/\/xitaso.com\/?page_id=97373"},"modified":"2026-05-11T13:06:17","modified_gmt":"2026-05-11T11:06:17","slug":"quest-one-penetration-testing","status":"publish","type":"page","link":"https:\/\/xitaso.com\/en\/projects\/quest-one-penetration-testing\/","title":{"rendered":"Quest One &#8211; Penetration Testing"},"content":{"rendered":"<div class=\"wpb-content-wrapper\" id=\"wpb-content-root\"><p>[vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221; z_index=&#8221;&#8221; el_class=&#8221;header_level2_container&#8221;][vc_column][vc_row_inner row_type=&#8221;row&#8221; type=&#8221;full_width&#8221; text_align=&#8221;left&#8221; css_animation=&#8221;&#8221; css=&#8221;.vc_custom_1769525746656{background-image: url(https:\/\/xitaso.com\/wp-content\/uploads\/QuestOne-1-scaled.jpg?id=97397) !important;}&#8221;][vc_column_inner offset=&#8221;vc_hidden-xs&#8221;][vc_empty_space height=&#8221;500&#8243;][\/vc_column_inner][\/vc_row_inner][vc_row_inner row_type=&#8221;row&#8221; type=&#8221;full_width&#8221; text_align=&#8221;left&#8221; css_animation=&#8221;&#8221;][vc_column_inner offset=&#8221;vc_hidden-lg vc_hidden-md vc_hidden-sm&#8221;][vc_single_image image=&#8221;97391&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221; qode_css_animation=&#8221;&#8221;][\/vc_column_inner][\/vc_row_inner][vc_row_inner row_type=&#8221;row&#8221; type=&#8221;grid&#8221; text_align=&#8221;left&#8221; css_animation=&#8221;&#8221;][vc_column_inner][vc_raw_html css=&#8221;&#8221;]JTNDZGl2JTIwY2xhc3MlM0QlMjJoZWFkZXJfbGV2ZWwyJTIyJTNFJTBBJTNDZGl2JTIwY2xhc3MlM0QlMjJ0b3BwZXIlMjIlM0VTdHJvbmclMjBjeWJlciUyMHJlc2lsaWVuY2UlMjBmb3IlMjBjcml0aWNhbCUyMGluZnJhc3RydWN0dXJlJTNDJTJGZGl2JTNFJTBBJTNDaDElM0VQZW5ldHJhdGlvbiUyMHRlc3RpbmclMjBmb3IlMjBzdXN0YWluYWJsZSUyMGh5ZHJvZ2VuJTIwcHJvZHVjdGlvbiUzQyUyRmgxJTNFJTBBJTNDJTJGZGl2JTNFJTBBJTBB[\/vc_raw_html][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221; css=&#8221;.vc_custom_1719909582502{background-color: #e8e0e0 !important;}&#8221; z_index=&#8221;&#8221;][vc_column][vc_row_inner row_type=&#8221;row&#8221; type=&#8221;grid&#8221; text_align=&#8221;left&#8221; css_animation=&#8221;&#8221;][vc_column_inner width=&#8221;1\/2&#8243;][vc_empty_space height=&#8221;60&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>The challenge<\/h2>\n<p>Quest One&#8217;s hydrogen electrolysers are part of the energy infrastructure and are therefore classified as critical infrastructure. Such systems are subject to particularly high cyber security requirements. To meet these requirements, Quest One needed an independent review of its existing security mechanisms. The goal of an external penetration test was to validate the security measures already in place, identify potential vulnerabilities at an early stage, <span data-teams=\"true\">and further develop the product&#8217;s cyber resilience<\/span>.[\/vc_column_text][vc_empty_space height=&#8221;30&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<h2>Quest One GmbH<\/h2>\n<p><a href=\"https:\/\/www.questone.com\/en\/?gad_campaignid=20503501614&amp;gad_source=5&amp;cHash=ef67361ec94964c1bf8c263f1e4081af\">Quest One<\/a> is a tech pioneer in developing and making PEM electrolysers and electrolysis stacks \u2013 key tech for making green hydrogen efficiently and reliably. With locations in Hamburg, Augsburg, and Houston, the company has been active in the hydrogen industry for over 25 years.<\/p>\n<\/div>\n<\/div>\n<p>[\/vc_column_text][vc_empty_space height=&#8221;30&#8243;][vc_single_image image=&#8221;97378&#8243; onclick=&#8221;custom_link&#8221; img_link_target=&#8221;_blank&#8221; css=&#8221;.vc_custom_1769595306354{padding-right: 55% !important;}&#8221; qode_css_animation=&#8221;&#8221; link=&#8221;https:\/\/www.questone.com\/en\/&#8221;][vc_empty_space height=&#8221;30&#8243;][\/vc_column_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_empty_space height=&#8221;30px&#8221;][vc_empty_space height=&#8221;30&#8243; el_class=&#8221;not-on-mobile&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>How we helped<\/h2>\n<p><span data-teams=\"true\">XITASO conducted a comprehensive black box penetration test for an electrolyzer. A security test in which the systems are tested from the perspective of a potential attacker without detailed prior knowledge. We examined the attack vectors via network interfaces and with direct access to the control terminal. Various perpetrator profiles were simulated, including external attackers and internal threat actors with different levels of authorization. Our security engineers specifically analyzed interfaces and components, identified vulnerabilities, and developed protective measures. Our test results and recommendations for action were summarized in a final report to further strengthen the cyber security of the system.<\/span>[\/vc_column_text][vc_empty_space height=&#8221;30&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>Technologies<\/h2>\n<p>[\/vc_column_text][vc_empty_space height=&#8221;15&#8243;][vc_raw_html css=&#8221;&#8221;]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[\/vc_raw_html][vc_empty_space height=&#8221;60&#8243;][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221; css=&#8221;.vc_custom_1769526285774{background-color: #005962 !important;}&#8221; z_index=&#8221;&#8221;][vc_column][vc_row_inner row_type=&#8221;row&#8221; type=&#8221;grid&#8221; text_align=&#8221;left&#8221; css_animation=&#8221;&#8221;][vc_column_inner][vc_single_image image=&#8221;97381&#8243; img_size=&#8221;large&#8221; css=&#8221;&#8221; qode_css_animation=&#8221;&#8221; title=&#8221;PEM-Elektrolyseur ME450&#8243;][vc_empty_space height=&#8221;10&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h4 class=\"h-style h-style-40\"><span style=\"color: #ffffff;\">Illustration of a tested ME450 PEM electrolyzer<\/span><\/h4>\n<p>[\/vc_column_text][vc_empty_space height=&#8221;30&#8243;][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221; el_class=&#8221;two-column-with-heading-on-top&#8221; z_index=&#8221;&#8221;][vc_column][vc_empty_space height=&#8221;30&#8243;][vc_row_inner row_type=&#8221;row&#8221; type=&#8221;grid&#8221; text_align=&#8221;left&#8221; css_animation=&#8221;&#8221;][vc_column_inner][vc_empty_space height=&#8221;50&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2 style=\"text-align: center;\">Other projects<\/h2>\n<p>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=&#8221;40&#8243;][\/vc_column][\/vc_row][vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221; z_index=&#8221;&#8221; el_class=&#8221;three-column-references&#8221;][vc_column][vc_row_inner row_type=&#8221;row&#8221; type=&#8221;grid&#8221; text_align=&#8221;left&#8221; css_animation=&#8221;&#8221;][vc_column_inner width=&#8221;1\/3&#8243;][vc_raw_html css=&#8221;&#8221;]JTNDYSUyMGhyZWYlM0QlMjIlMkZlbiUyRnByb2plY3RzJTJGZG1nLW1vcmktcGVuZXRyYXRpb24tdGVzdCUyRiUyMiUzRQ==[\/vc_raw_html][vc_empty_space height=&#8221;250&#8243; image_repeat=&#8221;no-repeat&#8221; background_image=&#8221;78814&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<div class=\"referenz_kunde\">DMG Mori<\/div>\n<h3>Penetration Test of Milling Machines<\/h3>\n<p>[\/vc_column_text][vc_raw_html]JTNDJTJGYSUzRQ==[\/vc_raw_html][\/vc_column_inner][vc_column_inner width=&#8221;1\/3&#8243;][vc_raw_html css=&#8221;&#8221;]JTNDYSUyMGhyZWYlM0QlMjIlMkZlbiUyRnByb2plY3RzJTJGYW1pcXVhc3klMkYlMjIlM0U=[\/vc_raw_html][vc_empty_space height=&#8221;250&#8243; image_repeat=&#8221;no-repeat&#8221; background_image=&#8221;45412&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<div class=\"referenz_kunde\">Research Project AMiQuaSy<\/div>\n<h3>Migration towards Post-Quantum Cryptography (POQ)<\/h3>\n<p>[\/vc_column_text][vc_raw_html]JTNDJTJGYSUzRQ==[\/vc_raw_html][\/vc_column_inner][vc_column_inner width=&#8221;1\/3&#8243;][vc_raw_html css=&#8221;&#8221;]JTNDYSUyMGhyZWYlM0QlMjIlMkZlbiUyRnByb2plY3RzJTJGaWxsdW1pbmUtbWFuYWdlbWVudC1mb3ItZW5lcmd5LXN1cHBseS1uZXR3b3JrcyUyRiUyMiUzRQ==[\/vc_raw_html][vc_empty_space height=&#8221;250&#8243; image_repeat=&#8221;no-repeat&#8221; background_image=&#8221;13572&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<div class=\"referenz_kunde\">Everllence \/ Fraunhofer<\/div>\n<h3>Management for energy supply networks<\/h3>\n<p>[\/vc_column_text][vc_raw_html]JTNDJTJGYSUzRQ==[\/vc_raw_html][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221;][vc_column][vc_empty_space height=&#8221;30&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<p style=\"text-align: center;\"><a class=\"mitPfeil\" href=\"https:\/\/xitaso.com\/en\/projects\/all-projects\/\">View all projects<\/a><\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221;][vc_column][vc_empty_space height=&#8221;50&#8243;][vc_empty_space height=&#8221;50&#8243; el_class=&#8221;not-on-mobile&#8221;][\/vc_column][\/vc_row][vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221; z_index=&#8221;&#8221; el_class=&#8221;your-contact-person&#8221; css=&#8221;.vc_custom_1719909675989{background-color: #e8e0e0 !important;}&#8221;][vc_column][vc_row_inner row_type=&#8221;row&#8221; type=&#8221;grid&#8221; text_align=&#8221;left&#8221; css_animation=&#8221;&#8221;][vc_column_inner][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2 style=\"text-align: center;\">Are you interested in a project or service, or do you have any other questions?<\/h2>\n<p>[\/vc_column_text][vc_single_image image=&#8221;42639&#8243; img_size=&#8221;120&#215;120&#8243; alignment=&#8221;center&#8221; style=&#8221;vc_box_circle_2&#8243; css=&#8221;&#8221; qode_css_animation=&#8221;&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<p style=\"text-align: center;\"><strong>Michael Buchenberg<\/strong><\/p>\n<p style=\"text-align: center;\">Tel. +49 821 885 882 888<br \/>\n<a href=\"mailto:michael.buchenberg@xitaso.com\">michael.buchenberg@xitaso.com<\/a><\/p>\n<p>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221; z_index=&#8221;&#8221; el_class=&#8221;header_level2_container&#8221;][vc_column][vc_row_inner row_type=&#8221;row&#8221; type=&#8221;full_width&#8221; text_align=&#8221;left&#8221; 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