Stadt ohne Strom

Krisenkommunikation für Energieversorger. Bericht von der Leitungsbautagung 2026

Wenn sich 950 Experten aus Mast-Betrieben in Dresden treffen, dann geht es nicht um die Aufzucht von Hähnchen oder Rindern, sondern um Hochtechnologie und die Sicherung unserer Energieversorgung. Zwischen dem 6. und dem 8. Mai versammelten sich 950 Teilnehmer*innen und 50 Aussteller aller großen Energieversorgungsunternehmen aus Deutschland, Österreich und der Schweiz zur 34. Leitungsbautagung „Forum Netzbau und Netzbetrieb“. Das ist der führende Kongress aller Fachleute zu allen Themen rund um alle Fragen zu den großen Stromnetzen, es geht um Performanz und Sicherheit rund um Erdkabel und Strommasten.

Neben Themen wie „Neue Entwicklungen beim Stabilitätsnachweis von Stahlgittermasten“ oder dem „Digitalen Inspektionsservice für Hoch- und Höchstspannungsleitungen“ ging es in diesem Jahr auch in einem besonderen Schwerpunkt um Sicherheitsthemen. Moderator Dipl.-Ing. Markus Palic, vormals Vorstand der Westdeutschen Licht- und Kraftwerke, begründete dies wie folgt: „Die Sabotage-Anschläge auf die Netze in Grünheide mit den Teslawerken und auf die Versorgung der Netze in Berlin Anfang diesen Jahres haben gezeigt, wie anfällig unsere Netze gegenüber terroristischen Angriffen sind und wie wichtig es ist, dass wir optimal auf Anschläge gleich welcher Art vorbereitet sind. Die wachsende Anzahl von Cyberangriffen stellt uns vor neue Herausforderungen.“

950 Experten von Energieversorgungsunternehmen aus Deutschland, Schweiz und Österreich diskutierten Anfang Mai in Dresden neben neuen Trends im Leitungsbau auch über die Sicherheit der Energienetze (Bild: Michael Kausch)

Und so kam es, dass neben einem Vortrag von Dr. Ing. Alexander Montabaur, Geschäftsführer der Westnetz GmbH und ehemaliger Vorstandsvorsitzender der E.DIS AG Fürstenwalde über das Krisenmanagement nach den Anschlägen auf die Energienetze in Grünheide im März 2024 und in Berlin im Januar 2026, ich eingeladen wurde, über Strategien zur Krisenkommunikation im Umfeld von Cyberangriffen zu sprechen.

Die Energieversorger stehen im Fadenkreuz potenzieller Angreifer

Klassische Sabotageangriffe auf Strommasten wie die auf die Netzversorgung des Teslawerks in Grünheide oder die Stromversorgung Berlins durch Saboteure Anfang 2026 sind im Vergleich zu möglichen Cyberangriffen noch das kleinere Übel. Im Januar 2026 waren rund 45.000 Haushalte und mehr als 2.200 Betriebe im Süden Berlins betroffen. Etwa die Hälfte der betroffenen Haushalte konnten nach rund 30 Stunden wieder versorgt werden. Für die andere Hälfte dauerte der Blackout noch länger. Die letzten Versorgungslücken konnten erst nach vier Tagen geschlossen werden.

Während der Sabotageangriff auf die Stromversorgung des Teslawerks 2024 eindeutig der ökoradikalen „Vulkangruppe“ zugeordnet werden kann, sind die Hinterleute des Anschlags vom Januar 2026 nach wie vor unbekannt. Hier reichen die Verdächtigungen von linksradikalen Terrorgruppen über Gruppierungen im AfD-Umfeld bis hin zu ausländischen Geheimdiensten.

Brennender Starksstrommast
Brennende Strommasten sind die Krisenszenarien der Vergangenheit (Themenillustration: KI made by vibrio)

Die Energieversorger sehen ihre wichtigsten Herausforderer noch immer im Umfeld radikalisierter Umweltgruppen und sie richten ihr Hauptaugenmerk auf die Sicherung der Strommasten vor Brandanschlägen. Der „Tesla-Mast“ ist heute mit Nato-Zaun umfasst und videoüberwacht. Gegen Cyberangriffe hilft das freilich nicht. Und wenn es stimmt, was deutsche Geheimdienste vermuten, dass die größten Gefahren zunehmend von hybriden Kriegsszenarien im Ost-West-Konflikt ausgehen, dann muss sich die Branche vor allem gegen Cyberangriffe wappnen. Dieser Feind aber lässt sich nicht mit Zaun und Kamera abschrecken. Und dieser Feind besteht nicht aus irre gemachten Öko-Fundamentalisten, sondern hier kommen die Angriffe aus dem organisierten Verbrechen – entweder mit kommerziellen oder mit politischen Interessen.

Das BSI sieht die Energiebranche gefährdet und leichtsinnig

Die deutsche Energiewirtschaft zeigt ein gefährliches Janusgesicht: Einerseits steht sie unter den sieben KRITIS-Branchen auf Rang zwei im Ranking der am meisten von Cyberangriffen herausgeforderten Branchen, andererseits steht sie auf dem vorletzten Rang, wenn es um das Engagement in Sachen Cyber-Resilienz geht:

Anzahl der gemeldeten Cyberangriffe 2025:

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(Quelle: Daten MSI 2026; Bild: vibrio 2026)

Demgegenüber steht eine geringe Bewertung durch das BSI hinsichtlich der Widerstands- und Abwehrfähigkeit. Dies illustriert die Einschätzung des Grades der Umsetzung von Maßnahmen zur Angriffserkennung. Dabei rangiert der Energie-Sektor auf Rang sechs.

Grad der Umsetzung von Maßnahmen zur Angriffserkennung. Je höher der Wert, desto besser sind die Maßnahmen ausgeprägt:

Cyberresilienz
(Quelle: Daten MSI 2026; Bild: vibrio 2026)

Die deutsche Energiewirtschaft hat nicht nur einen Nachholbedarf in Sachen Schutz vor Cyberangriffen, es fehlt ihr auch – jedenfalls in Teilen – am notwendigen Problembewusstsein für die neuen Gefahren und die neuen Gefahrenquellen.

Die neuen Gefahrenquellen sitzen in den Unternehmen, nicht in roten, grünen oder schwarzen Zellen

Als Referent konnte ich auf einen alten Vortragstrick zurückgreifen: Ich habe die Teilnehmenden gebeten, mit dem Finger auf einen beliebigen anderen Teilnehmer der Konferenz zu zeigen. Und so saßen sie dann da: 950 Energieexperten und zeigten mit dem Finger auf sich selbst! Noch wussten sie nicht, auf was ich mit dieser Bitte eigentlich hinaus wollte – bis ich mit dieser kleinen Erklärung herauskam: „Sie zeigen gerade auf das größte Sicherheitsrisiko in Ihrer Branche, denn das größte Risiko für die Energieversorgung geht nicht von irgendwelchen Spinnern aus, sondern von Ihnen – von den Mitarbeitenden in den Energieunternehmen.“

So ist das schließlich in allen Branchen: Die organisierte Cyberkriminalität findet den Weg in die Netze immer über die Mitarbeitenden der angegriffenen Unternehmen. Sie sind das Einfallstor, sie reagieren auf immer perfekter gemachte Phishing-Mails, geben Passwörter preis oder springen auf Fake-Websites.

Und genau deshalb ist Cybersecurity die Sache aller Mitarbeitenden, nicht nur die Aufgabe der Cyber-Spezialisten und der IT-Fachabteilungen. Und genau deshalb habe ich die anwesenden Konferenzteilnehmenden gebeten, in ihren Unternehmen darauf hinzuwirken, den Security Gap in Sachen Cyber-Sicherheit in ihrer Branche endlich abzubauen. Schließlich geht es um unser aller Energieversorgung. Es geht darum, dass wir nicht eines Tages alle im Dunkeln stehen, dass in unseren Städten nicht das Licht ausgeht, die Straßen- und U-Bahnen nicht mehr fahren. Ein Leben ohne elektrische Energie ist für uns alle nicht mehr vorstellbar. Das haben die kurzen Blackouts in Berlin gezeigt.

Stadt ohne Strom
Eine Stadt ohne Strom, ohne Licht, ohne Heizung, ohne Kommunikation, ohne Straßen- und U-Bahn und künftig ohne E-Autos ist ein Horrorszenario (Themenillustration: KI by vibrio 2026)

Cyberangriffe auf unsere Energieversorger sind eine tödliche Gefahr für unsere Gesellschaft. Terroristen wissen das. Die organisierte Kriminalität weiß das. Feinde der Demokratie wissen das, im Inland und im Ausland.

Das bisschen, was ich dann noch über das Thema Krisenkommunikation erzählen konnte, fand große Aufmerksamkeit. Ich muss das hier nicht wiederholen. Das habe ich auf diesem Blog schon an anderer Stelle ausführlich getan: siehe Krisenkommunikationsplan

Illustrationen © vibrio

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