Austria expelled three Russian embassy staff and revealed a large antenna array on the embassy roof used for systematic data interception in Vienna.
Russian Diplomats Expelled
Austrian Foreign Minister Beate Meinl-Reisinger announced on Monday, May 4th, that three employees of the Russian embassy had left the country. She emphasized that Vienna does not accept certain actions.
“It is unacceptable for diplomatic immunity to be used for espionage,” Meinl-Reisinger stated, as quoted by The Guardian. Austria has expelled a total of 14 Russian diplomats since 2020.
“Forest of Antennas” Discovered
The Austrian minister also addressed installations on the grounds of the Russian diplomatic mission, stating the matter was clearly presented to the Russian side, including regarding the “forest of antennas” on the building.
Systematic Data Interception
According to Austrian public broadcaster ORF, the equipment mounted on the embassy and diplomatic complex roofs was used to systematically intercept data transmitted via satellite internet. This included data from international and national organizations operating in Vienna.
Vienna: A Hub for Intelligence Activity
Vienna is home to the headquarters or significant representations of OPEC, the International Atomic Energy Agency, and the Organization for Security and Co-operation in Europe. This has made Vienna one of Europe’s most important centers for intelligence activity since the Cold War.
Russia Announces Retaliation
The Russian embassy in Vienna called Austria’s decision “outrageous,” “unjustified,” “politically motivated,” and “categorically unacceptable,” and announced a “sharp” response.
Austria Shifts Approach to Espionage
The Austrian government insists its approach to espionage is changing. Meinl-Reisinger acknowledged that the activities of foreign intelligence services pose a serious challenge for Austria, but pledged consistent action.
Austria to Tighten Anti-Espionage Laws
Authorities in Vienna are announcing changes to the law aimed at restricting the activities of foreign intelligence agencies. Current Austrian legislation contains a loophole that makes it difficult to prosecute espionage if it is not directly aimed at Austrian interests.
Vienna as an International Espionage Center
According to The Guardian, this loophole has turned Vienna into an international espionage hub. Estimates suggest that of the approximately 17,000 accredited diplomats in the city, as many as 7,000 may be agents. Many foreign embassies reportedly use the Austrian capital as a base for secret operations in Europe.
Espionage Scandal and Legal Pressure
Pressure to change the laws increased following the arrest of Egisto Ott, a former Austrian counterintelligence official. Ott stood trial in January 2026, accused of passing information to Russian intelligence services. The charges relate to one of the largest espionage affairs in Austria in decades. Ott denies the charges.