German drone maker Quantum Systems, a supplier to Ukraine, hit by cyberattack

Quantum Systems, a German drone manufacturer that supplies the Ukrainian military, has confirmed it was targeted in a cyberattack by hostile actors, according to reports by German broadcaster ntv and the Financial Times.

The Bavarian defence start-up, which rose to prominence during the war in Ukraine, said a cybersecurity incident had been detected in late October 2026.

The Financial Times reported that the German armed forces responded by taking the company's drones out of service. The newspaper described the move as a precautionary measure following the incident. Germany's Defence Ministry declined to comment on media reports when contacted in Berlin.

In a statement, the company, which is based in Gilching near Munich, said an immediate internal investigation had uncovered an active cyberattack by hostile actors. It said the threat was contained by its IT and security teams working in close and transparent cooperation with the authorities.

Quantum Systems said that thanks to the measures taken and the nature of the incident, the operation of its systems poses no risk to end users or operators. The incident has been reported to the relevant authorities, and an investigation is ongoing.

The company manufactures drones for both military and civilian purposes, with its main focus until now on reconnaissance and surveillance systems. It is also developing surface and underwater drones.

Among its newest products is the Reliant unmanned reconnaissance system, which can monitor large areas continuously for more than ten hours, takes off vertically and features integrated artificial intelligence. Another key area of development is Mosaic, software for managing unmanned systems.

Quantum drones are used by the Armed Forces of Ukraine in the country's defensive war against Russia.

In October, it emerged that Quantum Systems planned to provide Ukraine with tens of thousands of Spys interceptor drones designed specifically to counter Russia's new Geran-4 and Geran-5 jet-powered unmanned aerial vehicles. In late 2025, it also emerged that Ukrainian drone manufacturer Frontline Robotics and Quantum Systems would launch production of attack drones in Germany for Ukraine.