{"id":7413,"date":"2025-11-13T08:10:30","date_gmt":"2025-11-13T07:10:30","guid":{"rendered":"https:\/\/www.tec4net.com\/web\/?p=7413"},"modified":"2025-11-10T17:59:41","modified_gmt":"2025-11-10T16:59:41","slug":"31442","status":"publish","type":"post","link":"https:\/\/www.tec4net.com\/web\/2025\/11\/13\/31442\/","title":{"rendered":"Massives Datenleck: Milliarden E-Mail-Adressen und Passw\u00f6rter betroffen"},"content":{"rendered":"<p>Ein beispielloses Datenleck ersch\u00fcttert das Internet: Fast zwei Milliarden E-Mail-Adressen und 1,3 Milliarden Passw\u00f6rter wurden durch ein Credential-Stuffing-Leak \u00f6ffentlich zug\u00e4nglich. Sicherheitsforscher Troy Hunt hat diese Daten in \u201eHave I Been Pwned\u201c indexiert \u2013 der gr\u00f6\u00dfte Datensatz, den die Plattform je verarbeitet hat. Besonders besorgniserregend: 625 Millionen Passw\u00f6rter waren bisher unbekannt.<\/p>\n<p>Die Zugangsdaten stammen von der Threat-Intelligence-Plattform Synthient und wurden aus verschiedenen bekannten Lecks geb\u00fcndelt. Kriminelle nutzen solche Listen f\u00fcr automatisierte Angriffe, oft erfolgreich, da viele Nutzer dasselbe Passwort mehrfach verwenden.<\/p>\n<p>Hunt pr\u00fcfte die Datenqualit\u00e4t stichprobenartig; viele Passw\u00f6rter waren noch aktiv, teilweise \u00fcber zehn Jahre alt. Nutzer sollten ihre E-Mail-Adresse bei HIBP pr\u00fcfen, einen Passwort-Manager verwenden, Zwei-Faktor-Authentifizierung aktivieren und alle gefundenen Passw\u00f6rter sofort \u00e4ndern.<\/p>\n<p>Es handelt sich nicht um einen Hack einzelner Anbieter. Gmail-Adressen machen nur einen Teil aus, die meisten Eintr\u00e4ge stammen aus unterschiedlichsten Domains. Die Daten wurden \u00fcber Jahre zusammengetragen und f\u00fcr Credential-Stuffing genutzt.<\/p>\n<p>Quelle:<br data-start=\"1642\" data-end=\"1645\" \/><a class=\"decorated-link\" href=\"https:\/\/www.schmidtisblog.de\/rekord-datenleck-2025-zwei-milliarden-e-mail-adressen-und-passwoerter-im-netz-wie-du-pruefst-ob-du-betroffen-bist-1787250\/\" target=\"_new\" rel=\"noopener\" data-start=\"1645\" data-end=\"1796\">https:\/\/www.schmidtisblog.de\/rekord-datenleck-2025-zwei-milliarden-e-mail-adressen-und-passwoerter-im-netz-wie-du-pruefst-ob-du-betroffen-bist-1787250\/<\/a><\/p>\n<p>Weitere Artikel zu Datenlecks &#8211; <a href=\"https:\/\/www.tec4net.com\/web\/?s=datenleck\">https:\/\/www.tec4net.com\/web\/?s=datenleck<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Wir sind Experten f\u00fcr Datenschutz und IT-Sicherheit<\/strong><\/p>\n<p>Profitieren Sie von unserer umfassenden Beratung zu den Themen Datenschutz und IT-Sicherheit. Unser erfahrenes Team unterst\u00fctzt Sie dabei, Ihre Website und digitalen Dienste datenschutzkonform zu gestalten um die gesetzlichen Vorgaben zu erf\u00fcllen.<\/p>\n<p>Kontaktieren Sie uns noch heute und sichern Sie sich praxisnahe Beratung zur Umsetzung der DSGVO und Normen wie ISO 27001, PCI-DSS oder TISAX.<\/p>\n<p><strong>Datenschutz und IT-Sicherheit praktikabel umsetzen &#8211; tec4net GmbH<\/strong><\/p>\n<hr \/>\n<p><a href=\"https:\/\/www.tec4net.com\">www.tec4net.com<\/a> \u2013 <a href=\"https:\/\/www.it-news-blog.com\">www.it-news-blog.com<\/a> \u2013 <a href=\"https:\/\/www.it-sachverstand.info\">www.it-sachverstand.info<\/a> \u2013 <a href=\"https:\/\/www.datenschutz-muenchen.com\">www.datenschutz-muenchen.com<\/a> \u2013 <a href=\"http:\/\/it-sicherheit-muenchen.com\">www.it-sicherheit-muenchen.com<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><span data-slate-fragment=\"JTVCJTdCJTIydHlwZSUyMiUzQSUyMnBhcmFncmFwaCUyMiUyQyUyMmNoaWxkcmVuJTIyJTNBJTVCJTdCJTIydGV4dCUyMiUzQSUyMkFsbGUlMjB1bnNlcmUlMjBORVdTJTIwdW50ZXIlMjAtJTIwaHR0cHMlM0ElMkYlMkZ3d3cudGVjNG5ldC5jb20lMkZ3ZWIlMkZjYXRlZ29yeSUyRmFsbGdlbWVpbiUyMiU3RCU1RCU3RCU1RA==\">Alle unsere NEWS -&gt; <a href=\"http:\/\/news.tec4net.com\">http:\/\/news.tec4net.com<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ein beispielloses Datenleck ersch\u00fcttert das Internet: Fast zwei Milliarden E-Mail-Adressen und 1,3 Milliarden Passw\u00f6rter wurden durch ein Credential-Stuffing-Leak \u00f6ffentlich zug\u00e4nglich. Sicherheitsforscher Troy Hunt hat diese Daten in \u201eHave I Been Pwned\u201c indexiert \u2013 der gr\u00f6\u00dfte Datensatz, den die Plattform je verarbeitet hat. Besonders besorgniserregend: 625 Millionen Passw\u00f6rter waren bisher unbekannt. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[5666,5668,5663,2493,5667,5664,5665],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Massives Datenleck: Milliarden E-Mail-Adressen und Passw\u00f6rter betroffen - tec4net<\/title>\n<meta name=\"description\" content=\"Unsere IT-Experten beraten Sie im Bereich Consulting, IT-Security und Datenschutz in M\u00fcnchen | tec4net GmbH - seit 2003\" \/>\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.tec4net.com\/web\/2025\/11\/13\/31442\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Massives Datenleck: Milliarden E-Mail-Adressen und Passw\u00f6rter betroffen - 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