France toughens fight against foreign interference as cyberattacks continue

France faced two separate cyberattacks. One disrupted refrigeration systems at supermarkets in several countries, including France. Another was a denial-of-service attack against the website of the General Secretariat for Defence and National Security, or SGDSN. The website was inaccessible for several hours on Tuesday.

The supermarket attack affected about 700 of France’s roughly 10,000 food retail sites. The affected locations were restocking their shelves, and officials said there was no threat to national food supplies. The SGDSN attack used a DDoS method, which floods an online service with requests until it cannot respond normally.

Neither attack had a publicly claimed perpetrator. The SGDSN incident carried extra importance because its website hosts Viginum, the French service that detects and counters foreign digital interference. Together, the attacks show how cyber operations can target both everyday commercial systems and institutions responsible for national security.

A denial-of-service attack, or DDoS attack, makes an online service unavailable by sending it an overwhelming volume of requests. The requests consume the website’s ability to process traffic, leaving little capacity for ordinary visitors. The result is an inaccessible or severely disrupted service, even if the website itself has not been permanently damaged.

The article reports that France’s General Secretariat for Defence and National Security website was hit by this method. Sources told RFI that the attack paralysed the site for several hours on Tuesday. No one claimed responsibility for the incident.

The attack mattered beyond the temporary outage. The SGDSN website is home to Viginum, France’s service for detecting and countering foreign digital interference. A DDoS attack can therefore create disruption while also sending a symbolic message against an institution focused on defending France’s information environment. The incident highlights how basic access to a website can become a national-security concern.

The supermarket cyberattack affected about 700 sites out of roughly 10,000 food retail locations across France. That is approximately 7% of the country’s food retail sites. The attack disrupted refrigeration systems, creating operational problems for stores and forcing affected sites to assess damage and restock shelves.

The incident was not limited to France. It struck several countries, although no one had claimed responsibility when the article was published. Economy and Finance Minister Roland Lescure told parliament that the affected French sites were restocking their shelves. He also said the disruption did not threaten the country’s food supplies.

The scale still made the attack politically significant. Lescure said it “strikes at the heart of French food sovereignty,” linking supermarket technology to national resilience. The immediate impact involved store operations rather than a national shortage. However, the episode shows how attacks on connected commercial systems can affect essential services and raise wider security concerns.

The attack on the SGDSN website was especially symbolic because the site hosts Viginum. Viginum is France’s service for detecting and countering foreign digital interference. The outage therefore affected more than an ordinary public webpage. It struck the online home of an institution created to identify and respond to hostile activity in the digital space.

The attack used a DDoS method. It overwhelmed the website with requests and paralysed access for several hours on Tuesday. Sources told RFI that no one had claimed responsibility. The incident did not necessarily show that Viginum’s systems had been penetrated, but it made the service’s public website unavailable.

That symbolism matters as France strengthens its response to foreign interference. The government is examining legislation and warning that meddling from abroad will not be tolerated. An attack against the website of France’s counter-interference service highlights the contest between defensive institutions and the disruptive tactics they are designed to confront.

France’s proposed foreign-interference law would give a judge power to order measures stopping clearly false or misleading claims online. The aim is to strengthen the country’s ability to respond when coordinated digital activity threatens national security, French institutions, or other fundamental interests. It focuses on serious interference rather than ordinary disagreement or isolated inaccurate statements.

The article sets several conditions. The content would have to be circulated deliberately and on a massive scale. Its distribution would also need to use artificial or automated methods. Finally, it would have to create a serious and imminent threat to national security, French institutions, or another fundamental interest of the country.

The bill was being examined by the Senate Law Committee, ahead of a full-chamber debate the following week. Its proposed safeguards show that authorities are targeting organised, high-impact manipulation. If adopted, the measure would add a judicial tool to France’s broader response to cyberattacks, disinformation, and foreign political influence.

Hybrid warfare uses several forms of pressure together. Cyberattacks can disrupt websites or essential business systems. Online disinformation can confuse people or damage trust in institutions. Foreign actors may also try to exploit protests or influence elections. These actions can pursue political goals without appearing as a conventional military attack.

France’s recent incidents illustrate the range. A DDoS attack paralysed the SGDSN website, while another cyberattack disrupted refrigeration systems at hundreds of supermarkets. Foreign Minister Jean-Noël Barrot also referred to attempts to exploit high-school protests in France. He warned that outside interference must be curbed as the presidential election approaches.

The article identifies Iran, Russia, China, and the MAGA movement of Donald Trump’s supporters among the forces Barrot singled out. It also mentions criticism of Elon Musk’s interventions. France is responding through proposed legislation, stronger attention to digital interference, and national-security discussions about artificial intelligence. The combined approach reflects a threat spread across technology, public debate, and politics.

Digital infrastructure is a national-security concern because disruption can reach essential services and government institutions. In France, a cyberattack affected supermarket refrigeration systems, while another disabled the website of a body attached to the prime minister. These incidents show that digital systems connect everyday needs with the functioning and credibility of the state.

Artificial intelligence is treated similarly because it may affect strategic capabilities and national decision-making. President Emmanuel Macron was due to meet the national defence and security council on artificial intelligence. The Élysée said AI had become a strategic field that raises major national-security and sovereignty issues, comparing it with space and nuclear technology.

France is therefore examining both immediate cyber risks and longer-term technology risks. Protecting infrastructure, countering foreign digital interference, and considering AI security are linked priorities. The government’s proposed law and council discussions suggest that technology policy will increasingly be handled as part of national defence and sovereignty, not only as an economic or technical matter.