{"id":128582,"date":"2021-07-06T12:57:12","date_gmt":"2021-07-06T10:57:12","guid":{"rendered":"https:\/\/www.erasmusmagazine.nl\/en\/?p=128582"},"modified":"2025-12-19T11:25:43","modified_gmt":"2025-12-19T10:25:43","slug":"eur-warns-staff-after-leiden-university-falls-prey-to-hackers","status":"publish","type":"post","link":"https:\/\/www.erasmusmagazine.nl\/en\/2021\/07\/06\/eur-warns-staff-after-leiden-university-falls-prey-to-hackers\/","title":{"rendered":"EUR warns staff after Leiden University falls prey to hackers"},"content":{"rendered":"<p>The Leiden Observatory hack allowed criminals to steal the home addresses and research data of its staff. According to <em>AD<\/em>, which <a href=\"https:\/\/www.ad.nl\/tech\/universiteit-leiden-vermoedelijk-ook-gehackt-door-russen-en-nu-wil-iraanse-groep-geld-zien~a96a3faa\/\">broke the story<\/a> on Saturday, the hackers were most likely Russians. It is believed that they \u2018passed the stolen information on, or sold it, to Iran\u2019s Arvin Club\u2019.<\/p>\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"853\" src=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/2017\/05\/09212147\/servers-datacentrum-computers-racks-wikimedia-1280x853.jpg?image-crop-positioner-ts=1766139074\" alt=\"\" class=\"wp-image-53964\" srcset=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/2017\/05\/09212147\/servers-datacentrum-computers-racks-wikimedia-1280x853.jpg?image-crop-positioner-ts=1766139074 1280w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/2017\/05\/09212147\/servers-datacentrum-computers-racks-wikimedia-875x583.jpg?image-crop-positioner-ts=1766139074 875w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/2017\/05\/09212147\/servers-datacentrum-computers-racks-wikimedia-300x200.jpg?image-crop-positioner-ts=1766139074 300w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/2017\/05\/09212147\/servers-datacentrum-computers-racks-wikimedia.jpg?image-crop-positioner-ts=1766139074 2000w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption class=\"wp-element-caption\"><p data-component=\"image-credits\" class=\"flex flex-wrap gap-2 items-center text-base\">\n\t<span aria-hidden=\"true\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n<path d=\"M19.5 5.25H16.9012L15.6234 3.33375C15.555 3.23114 15.4623 3.147 15.3535 3.08879C15.2448 3.03057 15.1233 3.00007 15 3H9C8.87665 3.00007 8.75522 3.03057 8.64648 3.08879C8.53773 3.147 8.44502 3.23114 8.37656 3.33375L7.09781 5.25H4.5C3.90326 5.25 3.33097 5.48705 2.90901 5.90901C2.48705 6.33097 2.25 6.90326 2.25 7.5V18C2.25 18.5967 2.48705 19.169 2.90901 19.591C3.33097 20.0129 3.90326 20.25 4.5 20.25H19.5C20.0967 20.25 20.669 20.0129 21.091 19.591C21.5129 19.169 21.75 18.5967 21.75 18V7.5C21.75 6.90326 21.5129 6.33097 21.091 5.90901C20.669 5.48705 20.0967 5.25 19.5 5.25ZM15.375 12.375C15.375 13.0425 15.1771 13.695 14.8062 14.25C14.4354 14.8051 13.9083 15.2376 13.2916 15.4931C12.6749 15.7485 11.9963 15.8154 11.3416 15.6852C10.6869 15.5549 10.0855 15.2335 9.61351 14.7615C9.14151 14.2895 8.82007 13.6881 8.68985 13.0334C8.55962 12.3787 8.62646 11.7001 8.88191 11.0834C9.13735 10.4667 9.56993 9.93964 10.125 9.56879C10.68 9.19794 11.3325 9 12 9C12.8951 9 13.7535 9.35558 14.3865 9.98851C15.0194 10.6214 15.375 11.4799 15.375 12.375Z\" fill=\"currentColor\"\/>\n<\/svg>\n<\/span>\n\t<span class=\"sr-only\">Image by:<\/span>\n\n\t\t\t<span>\n\t\t\t\t\t\t\t<span>Wikimedia<\/span>\t\t\t\t\t<\/span>\n\t<\/p>\n<\/figcaption><\/figure><p>The university told <em>AD<\/em> that the server had previously been hacked six months earlier and its security was still not quite up to par. However, the server was said not to be linked to the university\u2019s IT environment.<\/p>\n<p>On Monday morning, all EUR employees received an e-mail urgently requesting all employees who administer web servers of their own to report these servers to the IT service desk. \u201cWeb servers are often the target of hackers and if they are not properly secured, they pose a significant risk to EUR\u2019s computer environment. In addition, external web servers of EUR researchers and collaborating organizations are often managed by people who have little experience with web server management,\u201d the e-mail stated.<\/p>\n<h2 class=\"wp-block-heading\">Hackers demand 16 bitcoins<\/h2><p>By now the Iranian club has published some of the addresses and data stolen from the Leiden-based server. If the university is unwilling to pay 16 bitcoins (more than \u20ac450,000), more information will be posted online. Leiden University told <em>AD<\/em> that it would not accede to the hackers\u2019 demand, saying that the risk of identity fraud is limited and that the stolen research data are not confidential.<\/p>\n<h2 class=\"wp-block-heading\">No ransomware<\/h2><p>The data theft did not constitute a ransomware attack, such as the one with which <a href=\"https:\/\/www.erasmusmagazine.nl\/en\/2020\/02\/17\/maastricht-university-pays-ransom-money-from-its-own-private-funding\/?noredirect=en_US\">Maastricht University<\/a> was hit in December 2019. Ransomware attacks involve the encryption of computer systems by criminals and system owners not being granted access to their own networks until they have paid a ransom. Apparently, this is not what happened in Leiden, where the systems are functioning properly.<\/p>\n<p>A little while ago, Minister for Education Ingrid van Engelshoven said she was <a href=\"http:\/\/www.dub.uu.nl\/nl\/nieuws\/instellingen-wapenen-zich-tegen-cybercriminelen\">happy<\/a> with the joint steps taken by Dutch tertiary education institutions to improve their Internet security.<\/p>\n\n\t<div data-name=\"acf\/posts\" class=\"alignfull py-6 md:py-8 lg:py-10 bg-white\" >\n\t\t<div class=\"container-fixed\">\n\n\t\t\t\n\t\t\t<div class=\"space-y-6 md:space-y-8\">\n\n\t\t\t\t\t\t\t\t\t<h2 class=\"text-xl md:text-2xl\">Latest news<\/h2>\n\t\t\t\t\n\t\t\t\t\t\n\t<ul data-component=\"post-grid\" class=\"grid items-stretch grid-cols-1 gap-2 md:gap-4 lg:gap-8 text-zoom-lg:grid-cols-1\n\t\t\n\t\tlg:grid-cols-3\n\t\t\">\n\n\t\t\n\t\t\t\t\t\t\n\t\t\t\n\t\t\t<li class=\"@container\">\n\t\t\t\t\n<div data-component=\"teaser-post\" class=\"block-theme-sand hidden lg:flex h-full relative flex bg-sand-300\n\tblock-theme-violet:bg-white block-theme-violet:text-purple block-theme-mocha:bg-sand-500 block-theme-mocha:text-brown\n\tblock-theme-sand:bg-sand-300 block-theme-sand:text-neutral-900\n\tblock-theme-violet:outline-purple-100 block-theme-violet:outline-1 block-theme-violet:outline-t-0\n\tflex-col @xl:flex-row\">\n\t\t\t<div class=\"relative image:w-full image:aspect-video image:object-cover shrink-0 w-full @xl:w-1\/2\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"720\" src=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/Desidera_AI_2026_AmiRinn-1280x720.png?image-crop-positioner-ts=1777384195\" class=\"attachment-video_xl size-video_xl\" alt=\"\" srcset=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/Desidera_AI_2026_AmiRinn-1280x720.png?image-crop-positioner-ts=1777384195 1280w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/Desidera_AI_2026_AmiRinn-500x282.png?image-crop-positioner-ts=1777384195 500w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/Desidera_AI_2026_AmiRinn-832x468.png?image-crop-positioner-ts=1777384195 832w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/>\n\n\t\t\t\t\t<\/div>\n\t\n\t<div class=\"flex flex-col gap-2 md:gap-4 p-4 @md:p-8 @xl:p-8 \">\n\n\t\t\t\t<h3 class=\"text-md @sm:text-xl @md:text-2xl @xl:text-2xl\">\n\t\t\t<a href=\"https:\/\/www.erasmusmagazine.nl\/en\/2026\/04\/28\/een-eigen-chatgpt-voor-medewerkers-universiteit-lanceert-desidera\/\" class=\"absolute-link text-current underline-offset-2 decoration-2 hocus:underline @md:decoration-3 @xl:decoration-4 inline-block\">\n\t\t\t\tA ChatGPT of its own for staff: university launches Desidera\n\t\t\t<\/a>\n\t\t<\/h3>\n\n\t\t<div class=\"flex flex-wrap gap-4 items-center\">\n\t\t\t<span class=\"sr-only\">Gepubliceerd op:<\/span>\n\t\t\t<time class=\"text-sm font-soehne text-neutral-900\" datetime=\"2026-04-28\">28 April 2026<\/time>\n\n\t\t\t\t\t\t\t\t\t\t\t\n\t<ul data-component=\"list-badges\" class=\"flex items-center gap-2 flex-wrap\" aria-label=\"Geplaatst in categorie\">\n\t\t\t\t\t<li>\n\t\t\t\t\t<div data-component=\"badge\" class=\"block-theme-violet:bg-purple font-soehne font-bold text-sm bg-brown-600 block-theme-violet:bg-purple text-white py-[2px] px-2\">\n\t\t\t\t\tArtificial Intelligence\n\t\t\t<\/div>\n\t\t\t<\/li>\n\t\t\t<\/ul>\n\t\t\t\t\t<\/div>\n\n\t\t\t<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t\t\n<div data-component=\"teaser-post-small\" class=\"block-theme-sand lg:hidden relative flex h-full bg-sand-300\n\tblock-theme-violet:bg-white block-theme-violet:text-purple block-theme-mocha:bg-sand-500 block-theme-mocha:text-brown\n\tblock-theme-sand:bg-sand-300 block-theme-sand:text-neutral-900\n\tblock-theme-violet:outline-purple-100 block-theme-violet:outline-1 block-theme-violet:outline-t-0\n\ttheme-mocha:bg-white! theme-violet:bg-white! theme-sand:bg-white!\n\tflex-row gap-4 @md:gap-8 p-4 @md:p-6\">\n\t\t\t<div class=\"image:w-full image:aspect-square image:object-cover shrink-0 size-17.5 @sm:size-21.25 @md:size-30 @lg:size-40\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"460\" height=\"460\" src=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/Desidera_AI_2026_AmiRinn-460x460.png?image-crop-positioner-ts=1777384195\" class=\"attachment-square_lg size-square_lg\" alt=\"\" srcset=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/Desidera_AI_2026_AmiRinn-460x460.png?image-crop-positioner-ts=1777384195 460w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/Desidera_AI_2026_AmiRinn-115x115.png?image-crop-positioner-ts=1777384195 115w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/Desidera_AI_2026_AmiRinn-230x230.png?image-crop-positioner-ts=1777384195 230w\" sizes=\"auto, (max-width: 460px) 100vw, 460px\" \/>\n\t\t<\/div>\n\t\n\t<div class=\"flex flex-col gap-2 md:gap-4 \">\n\t\t\t\t<h3 class=\"text-md @lg:text-lg\">\n\t\t\t<a href=\"https:\/\/www.erasmusmagazine.nl\/en\/2026\/04\/28\/een-eigen-chatgpt-voor-medewerkers-universiteit-lanceert-desidera\/\" class=\"absolute-link text-current hocus:underline inline-block\">\n\t\t\t\tA ChatGPT of its own for staff: university launches Desidera\n\t\t\t<\/a>\n\t\t<\/h3>\n\n\t\t<div class=\"flex flex-wrap gap-4 items-center\">\n\t\t\t<span class=\"sr-only\">Gepubliceerd op:<\/span>\n\t\t\t<time class=\"text-sm font-soehne text-neutral-900\" datetime=\"2026-04-28\">28 April 2026<\/time>\n\n\t\t\t\t\t\t\t\t\t\t\t\n\t<ul data-component=\"list-badges\" class=\"flex items-center gap-2 flex-wrap\" aria-label=\"Geplaatst in categorie\">\n\t\t\t\t\t<li>\n\t\t\t\t\t<div data-component=\"badge\" class=\"block-theme-violet:bg-purple font-soehne font-bold text-sm bg-brown-600 block-theme-violet:bg-purple text-white py-[2px] px-2\">\n\t\t\t\t\tArtificial Intelligence\n\t\t\t<\/div>\n\t\t\t<\/li>\n\t\t\t<\/ul>\n\t\t\t\t\t<\/div>\n\n\t\t\t<\/div>\n<\/div>\n\t\t\t\t\t\t\t<\/li>\n\t\t\n\t\t\t\t\t\t\n\t\t\t\n\t\t\t<li class=\"@container\">\n\t\t\t\t\n<div data-component=\"teaser-post\" class=\"block-theme-mocha hidden lg:flex h-full relative flex bg-sand-300\n\tblock-theme-violet:bg-white block-theme-violet:text-purple block-theme-mocha:bg-sand-500 block-theme-mocha:text-brown\n\tblock-theme-sand:bg-sand-300 block-theme-sand:text-neutral-900\n\tblock-theme-violet:outline-purple-100 block-theme-violet:outline-1 block-theme-violet:outline-t-0\n\tflex-col @xl:flex-row\">\n\t\t\t<div class=\"relative image:w-full image:aspect-video image:object-cover shrink-0 w-full @xl:w-1\/2\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"720\" src=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/stemmen_gemeenteraadsverkiezingen_voting_international-students_-electios_2026_Ami-Rinn-1280x720.jpg?image-crop-positioner-ts=1772463864\" class=\"attachment-video_xl size-video_xl\" alt=\"\" srcset=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/stemmen_gemeenteraadsverkiezingen_voting_international-students_-electios_2026_Ami-Rinn-1280x720.jpg?image-crop-positioner-ts=1772463864 1280w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/stemmen_gemeenteraadsverkiezingen_voting_international-students_-electios_2026_Ami-Rinn-500x282.jpg?image-crop-positioner-ts=1772463864 500w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/stemmen_gemeenteraadsverkiezingen_voting_international-students_-electios_2026_Ami-Rinn-832x468.jpg?image-crop-positioner-ts=1772463864 832w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/>\n\n\t\t\t\t\t<\/div>\n\t\n\t<div class=\"flex flex-col gap-2 md:gap-4 p-4 @md:p-8 @xl:p-8 \">\n\n\t\t\t\t<h3 class=\"text-md @sm:text-xl @md:text-2xl @xl:text-2xl\">\n\t\t\t<a href=\"https:\/\/www.erasmusmagazine.nl\/en\/2026\/04\/28\/newly-elected-council-members-in-favour-of-better-support-for-students-against-rising-tuition-fees-and-planetary-health-diet\/\" class=\"absolute-link text-current underline-offset-2 decoration-2 hocus:underline @md:decoration-3 @xl:decoration-4 inline-block\">\n\t\t\t\tNewly elected council members in favour of better support for students, against rising tuition fees and Planetary Health Diet\n\t\t\t<\/a>\n\t\t<\/h3>\n\n\t\t<div class=\"flex flex-wrap gap-4 items-center\">\n\t\t\t<span class=\"sr-only\">Gepubliceerd op:<\/span>\n\t\t\t<time class=\"text-sm font-soehne text-neutral-900\" datetime=\"2026-04-28\">28 April 2026<\/time>\n\n\t\t\t\t\t\t\t\t\t\t\t\n\t<ul data-component=\"list-badges\" class=\"flex items-center gap-2 flex-wrap\" aria-label=\"Geplaatst in categorie\">\n\t\t\t\t\t<li>\n\t\t\t\t\t<div data-component=\"badge\" class=\"block-theme-violet:bg-purple font-soehne font-bold text-sm bg-brown-600 block-theme-violet:bg-purple text-white py-[2px] px-2\">\n\t\t\t\t\tUniversity Council\n\t\t\t<\/div>\n\t\t\t<\/li>\n\t\t\t<\/ul>\n\t\t\t\t\t<\/div>\n\n\t\t\t<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t\t\n<div data-component=\"teaser-post-small\" class=\"block-theme-mocha lg:hidden relative flex h-full bg-sand-300\n\tblock-theme-violet:bg-white block-theme-violet:text-purple block-theme-mocha:bg-sand-500 block-theme-mocha:text-brown\n\tblock-theme-sand:bg-sand-300 block-theme-sand:text-neutral-900\n\tblock-theme-violet:outline-purple-100 block-theme-violet:outline-1 block-theme-violet:outline-t-0\n\ttheme-mocha:bg-white! theme-violet:bg-white! theme-sand:bg-white!\n\tflex-row gap-4 @md:gap-8 p-4 @md:p-6\">\n\t\t\t<div class=\"image:w-full image:aspect-square image:object-cover shrink-0 size-17.5 @sm:size-21.25 @md:size-30 @lg:size-40\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"460\" height=\"460\" src=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/stemmen_gemeenteraadsverkiezingen_voting_international-students_-electios_2026_Ami-Rinn-460x460.jpg?image-crop-positioner-ts=1772463864\" class=\"attachment-square_lg size-square_lg\" alt=\"\" srcset=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/stemmen_gemeenteraadsverkiezingen_voting_international-students_-electios_2026_Ami-Rinn-460x460.jpg?image-crop-positioner-ts=1772463864 460w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/stemmen_gemeenteraadsverkiezingen_voting_international-students_-electios_2026_Ami-Rinn-115x115.jpg?image-crop-positioner-ts=1772463864 115w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/stemmen_gemeenteraadsverkiezingen_voting_international-students_-electios_2026_Ami-Rinn-230x230.jpg?image-crop-positioner-ts=1772463864 230w\" sizes=\"auto, (max-width: 460px) 100vw, 460px\" \/>\n\t\t<\/div>\n\t\n\t<div class=\"flex flex-col gap-2 md:gap-4 \">\n\t\t\t\t<h3 class=\"text-md @lg:text-lg\">\n\t\t\t<a href=\"https:\/\/www.erasmusmagazine.nl\/en\/2026\/04\/28\/newly-elected-council-members-in-favour-of-better-support-for-students-against-rising-tuition-fees-and-planetary-health-diet\/\" class=\"absolute-link text-current hocus:underline inline-block\">\n\t\t\t\tNewly elected council members in favour of better support for students, against rising tuition fees and Planetary Health Diet\n\t\t\t<\/a>\n\t\t<\/h3>\n\n\t\t<div class=\"flex flex-wrap gap-4 items-center\">\n\t\t\t<span class=\"sr-only\">Gepubliceerd op:<\/span>\n\t\t\t<time class=\"text-sm font-soehne text-neutral-900\" datetime=\"2026-04-28\">28 April 2026<\/time>\n\n\t\t\t\t\t\t\t\t\t\t\t\n\t<ul data-component=\"list-badges\" class=\"flex items-center gap-2 flex-wrap\" aria-label=\"Geplaatst in categorie\">\n\t\t\t\t\t<li>\n\t\t\t\t\t<div data-component=\"badge\" class=\"block-theme-violet:bg-purple font-soehne font-bold text-sm bg-brown-600 block-theme-violet:bg-purple text-white py-[2px] px-2\">\n\t\t\t\t\tUniversity Council\n\t\t\t<\/div>\n\t\t\t<\/li>\n\t\t\t<\/ul>\n\t\t\t\t\t<\/div>\n\n\t\t\t<\/div>\n<\/div>\n\t\t\t\t\t\t\t<\/li>\n\t\t\n\t\t\t\t\t\t\n\t\t\t\n\t\t\t<li class=\"@container\">\n\t\t\t\t\n<div data-component=\"teaser-post\" class=\"block-theme-mocha hidden lg:flex h-full relative flex bg-sand-300\n\tblock-theme-violet:bg-white block-theme-violet:text-purple block-theme-mocha:bg-sand-500 block-theme-mocha:text-brown\n\tblock-theme-sand:bg-sand-300 block-theme-sand:text-neutral-900\n\tblock-theme-violet:outline-purple-100 block-theme-violet:outline-1 block-theme-violet:outline-t-0\n\tflex-col @xl:flex-row\">\n\t\t\t<div class=\"relative image:w-full image:aspect-video image:object-cover shrink-0 w-full @xl:w-1\/2\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"720\" src=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/defne-newsflash-kingsday-720x720.jpg?image-crop-positioner-ts=1777371429\" class=\"attachment-video_xl size-video_xl\" alt=\"\" srcset=\"https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/defne-newsflash-kingsday-720x720.jpg?image-crop-positioner-ts=1777371429 720w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/defne-newsflash-kingsday-115x115.jpg?image-crop-positioner-ts=1777371429 115w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/defne-newsflash-kingsday-230x230.jpg?image-crop-positioner-ts=1777371429 230w, https:\/\/www.erasmusmagazine.nl\/en\/wp-content\/uploads\/sites\/8\/defne-newsflash-kingsday-460x460.jpg?image-crop-positioner-ts=1777371429 460w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/>\n\n\t\t\t\t\t\t\t<span class=\"@xl:hidden absolute -bottom-9 @md:-bottom-12 right-0 bg-brown text-white aspect-square size-9 block-theme-violet:bg-purple grid place-content-center @md:size-12 svg:size-4 @md:svg:size-6 @xl:svg:size-6\" aria-hidden=\"true\">\n\t\t\t\t\t<svg width=\"18\" height=\"20\" viewBox=\"0 0 18 20\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n<path d=\"M17.25 9.99998C17.2506 10.2546 17.1853 10.5051 17.0605 10.727C16.9356 10.949 16.7555 11.1348 16.5375 11.2665L3.03 19.5297C2.80227 19.6691 2.54144 19.7452 2.27445 19.7502C2.00746 19.7551 1.74399 19.6887 1.51125 19.5578C1.28073 19.4289 1.0887 19.2409 0.954904 19.0132C0.821111 18.7855 0.750385 18.5263 0.75 18.2622V1.73779C0.750385 1.47368 0.821111 1.21445 0.954904 0.986734C1.0887 0.759022 1.28073 0.571057 1.51125 0.442167C1.74399 0.311244 2.00746 0.244825 2.27445 0.249769C2.54144 0.254713 2.80227 0.330842 3.03 0.470292L16.5375 8.73342C16.7555 8.86511 16.9356 9.05097 17.0605 9.27291C17.1853 9.49485 17.2506 9.74533 17.25 9.99998Z\" fill=\"currentColor\"\/>\n<\/svg>\n\n\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\n\t<div class=\"flex flex-col gap-2 md:gap-4 p-4 @md:p-8 @xl:p-8 pr-11 @md:pr-12 @xl:pr-12\">\n\n\t\t\t\t<h3 class=\"text-md @sm:text-xl @md:text-2xl @xl:text-2xl\">\n\t\t\t<a href=\"https:\/\/www.erasmusmagazine.nl\/en\/2026\/04\/28\/em-tv-newsflash-non-european-tuition-fees-double-liberi-erasmi-wins-and-free-online-therapy\/\" class=\"absolute-link text-current underline-offset-2 decoration-2 hocus:underline @md:decoration-3 @xl:decoration-4 inline-block\">\n\t\t\t\tEM TV newsflash: Non-European tuition fees double, Liberi Erasmi wins and free online therapy\n\t\t\t<\/a>\n\t\t<\/h3>\n\n\t\t<div class=\"flex flex-wrap gap-4 items-center\">\n\t\t\t<span class=\"sr-only\">Gepubliceerd op:<\/span>\n\t\t\t<time class=\"text-sm font-soehne text-neutral-900\" datetime=\"2026-04-28\">28 April 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fill=\"currentColor\"\/>\n<\/svg>\n\n\t\t<\/span>\n\n\t\t\t\n\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The Leiden Observatory hack allowed criminals to steal the home addresses and research data of its staff. According to AD, which broke the story on Saturday, the hackers were most likely Russians. It is believed that they \u2018passed the stolen information on, or sold it, to Iran\u2019s Arvin Club\u2019. The university told AD that the [&hellip;]<\/p>\n","protected":false},"author":278,"featured_media":53964,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_trash_the_other_posts":false,"editor_notices":[],"footnotes":""},"categories":[21863],"em_content_type":[],"class_list":["post-128582","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-it"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>EUR warns staff after Leiden University falls prey to hackers<\/title>\n<meta name=\"description\" content=\"Last week a server belonging to the Leiden Observatory was hacked. Criminals got hold of people\u2019s personal data and demanded that the university pay \u20ac450,000. The hack prompted Erasmus University to warn its staff to prevent security breaches.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.erasmusmagazine.nl\/en\/2021\/07\/06\/eur-warns-staff-after-leiden-university-falls-prey-to-hackers\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"EUR warns staff after Leiden University falls prey to hackers\" \/>\n<meta property=\"og:description\" content=\"Last week a server belonging to the Leiden Observatory was hacked. Criminals got hold of people\u2019s personal data and demanded that the university pay \u20ac450,000. 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