Austria has taken decisive action against suspected espionage, expelling three employees from the Russian Embassy. The Austrian Foreign Ministry confirmed reports that these diplomats were engaging in spying activities by utilizing a sophisticated array of antennas on the roofs of the Russian Embassy in Vienna and a diplomatic compound in the Donaustadt district. These installations were suspected of enabling Russia to intercept data transmitted by various international organizations based in Vienna, particularly via satellite internet. Vienna is a significant hub for numerous global bodies, including several UN agencies, the International Atomic Energy Agency (IAEA), the Organisation of the Petroleum Exporting Countries (OPEC), and the Organisation for Security and Cooperation in Europe (OSCE).

Austria's Foreign Minister, Beate Meinl-Reisinger, emphatically stated that "Espionage is a security problem for Austria," and that the government has "changed course and are taking decisive action against it." She underlined the unacceptability of using diplomatic immunity to conduct espionage, a message that was conveyed unequivocally to the Russian side. This move brings the total number of Russian diplomats expelled by Vienna to 14 since 2020. Despite Austria's traditional policy of military neutrality, particularly as an EU member, it has become increasingly assertive in responding to such incidents, especially since Moscow's full-scale invasion of Ukraine in February 2022.

The decision to expel the diplomats came after the Russian ambassador was reportedly summoned to the Foreign Ministry in April. Austrian authorities requested that Russia lift the diplomats' immunity to allow for a proper investigation by prosecutors, but this request was refused, leading directly to the expulsions. The three individuals have since left Austria. In response, the Russian Embassy in Vienna criticized Austria's decision as "outrageous," "unjustified," "politically motivated," and "categorically unacceptable," vowing a "harsh" retaliation and stating that Vienna bears full responsibility for the further deterioration of already strained bilateral relations.

The expulsions also highlight Austria's ongoing efforts to address a long-standing loophole in its criminal code that has historically allowed foreign intelligence services to operate with relative freedom, provided their activities did not directly target Austrian interests. This legal gap has contributed to Vienna's reputation as Europe's "espionage capital" since the Cold War, with some estimates suggesting that up to 7,000 secret agents might be operating among the city’s 17,000 accredited diplomats. The Austrian government's three-party coalition has drafted new legislation to tighten espionage laws, aiming to make it illegal to spy against the EU and international organizations based in Vienna, thereby expanding the definition of espionage against Austria's interests.

Pressure to reform these laws has intensified following significant cases, such as the arrest in 2024 of Egisto Ott, a former Austrian counter-espionage official. Ott is currently on trial, accused of handing over sensitive information to Russian intelligence officers in one of Austria's most significant spy cases in decades. He is alleged to have helped Russia locate opponents of Vladimir Putin and sold government phones and secure laptops to Moscow at the behest of Jan Marsalek, the fugitive former COO of Wirecard, who is believed to be working for Russian military intelligence and currently residing in Moscow. These high-profile cases underscore the urgent need for Austria to bolster its legal framework against espionage, ensuring greater protection for both national and international interests within its borders.