Berlin, September 08, 2026

Following the cyberattack on the Berlin administration, the German Federal Office for Information Security (BSI) is warning of an increased risk from targeted phishing attacks and expects more far-reaching consequences of the data breach than previously assumed.

According to security experts, the Berlin Senate Chancellery and the administration of the State of Berlin have been affected by a serious cyberattack whose extent may have been underestimated. The BSI has issued a warning following the data breach and is pointing to an elevated threat situation.

What is known about the attack so far

Florian Hauer, a security expert and frequently cited specialist on the incident, explained the risk in a statement: „Je mehr ich über eine Person weiß, desto genauer kann ich mich als diese Person ausgeben, desto genauer kann ich auch einschätzen, was ich von dieser Person wissen muss, zum Beispiel, um in ihrem Auftrag etwas bestellen zu können." This statement illustrates how attackers could use the obtained data to specifically imitate identities and act in the name of those affected.