Cybersicherheit : Wie sicher ist die Schul-IT?

Nach drei Wochen Offline-Betrieb sind 64 Karlsruher Schulen am vergangenen Freitag wieder ans Netz gegangen. Fünf weitere können zumindest wieder im Verwaltungsnetz arbeiten, das für die E-Mail-Kommunikation oder etwa personalbezogene Aufgaben betrieben wird. Die Freigabe des pädagogischen Netzes, in dem Anwendungen für den digital gestützten Unterricht laufen, soll zeitnah folgen, wie die Stadt mitteilte. Am zweiten Februarwochenende waren Server von acht Schulen mit Ransomware verschlüsselt worden. Die Angreifer:innen hatten Medienberichten zufolge pro Schule ein Lösegeld von zwei Bitcoin (nach damaligem Kurs rund 41.000 Euro) verlangt. Eine Sprecherin der Stadt bestätigte gegenüber Tagesspiegel Background, dass es eine Lösegeldforderung gegeben hatte.

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