MICROSOFT liest mit?! 😳💥 – Outlook leitet fremde E-Mails und Logindaten an sich weiter. Deine Auch?

IT an der Bar November 25, 2025
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IT an der Bar

@itanderbar

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Wir erklären Themen der IT einfach und verständlich 😊

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Ich hab’s nicht glauben wollen – bis ich es live gesehen habe: Beim Einrichten eines Nicht-Microsoft-Mailkontos in Outlook baut nicht mein Rechner die direkte Verbindung zum Fremdmailanbieter auf, sondern ein x-beliebiger Microsoft-Server – inkl. der zugehörigen Logindaten wie Benutzername und Passwort. In diesem Video nehme ich dich Schritt für Schritt mit: Wir starten einen frischen Server, richten DNS & TLS ein, konfigurieren Outlook und schneiden den gesamten Traffic forensisch mit. Du siehst im Klartext, wie Auth-Daten an Microsoft-IPs gehen, selbst wenn Outlook geschlossen oder der komplette Client offline ist. Außerdem testen wir, ob ausgehende Mails ebenfalls über Microsoft laufen und was bei ungültigen Zertifikaten passiert. Am Ende weißt du: Welche Risiken das für Datenschutz/DSGVO bedeutet, wie du erkennst, ob dein Konto betroffen ist, und welche Gegenmaßnahmen sinnvoll sind (Clients, Einstellungen, Monitoring). Das ist kein Bashing – das ist ein nachvollziehbarer Live-Beweis, damit du fundiert entscheiden kannst, wie du in Zukunft mit Outlook & Mail-Konten umgehst. ⚠️🔍📧 #Outlook #Microsoft #Datenschutz #Cybersecurity #itsecurity 👉 Abonniere unseren Kanal für weitere informative Videos und vergiss nicht die Glocke zu läuten🔔 👉 Teile dieses Video mit deinen Freunden und hilf ihnen, sich online zu schützen! 🤝 👉 Hinterlasse einen Kommentar und teile uns deine Meinung mit! 💬 Links: README: https://github.com/it-an-der-bar/YouTube/blob/main/Eigener%20Server/Mail-Server-Interceptor/readme.md Das Skript: https://raw.githubusercontent.com/it-an-der-bar/YouTube/refs/heads/main/Eigener%20Server/Mail-Server-Interceptor/setup-test-mailserver.sh Mitschnitt: https://github.com/it-an-der-bar/YouTube/blob/main/Eigener%20Server/Mail-Server-Interceptor/traffic.md 00:00 Einleitung 00:29 Finale Teaser 00:38 Kurzintro 00:41 Vorwort 00:59 Screen Recording Bestellung Server 02:30 Erste Verbindung mit Mailserver 03:39 Skript zur Mailserver Konfiguration 06:08 Start des Mailservers 07:41 Erster Start Outlook 09:32 Mitschnitt Kommunikation zum Mailserver 10:00 Erster Beweis der versteckten Kommunikation 11:48 Base64 Code decodieren 13:02 Deaktivieren der Internetverbindung 14:11 Beweis Nr. 2 trotz deaktivierter Verbindung 19:39 Prüfung der ausgehenden Mails 28:19 Schlusswort und Verabschiedung

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