Cyber experts suspect Russian hackers of disabling supermarket refrigerators in 10 EU countries Two major cyber attacks on European supermarkets, which occurred within weeks of each other, exposed the vulnerability not of the military but of critical EU infrastructure. European Commissioner for Agriculture and Food Christoph Hansen described them as "a deliberate attempt to disrupt our food supply chain". These attacks, according to cyber security experts, may be part of Russia's hybrid war against Europe, Politico writes. Such statements have not yet been made officially. "Who is behind this attack is unknown and may never be established," said a spokesman for the Belgian Cyber Security Agency. Russia, along with Iran, China and North Korea, have often organized cyber attacks in Europe. But in this case, the nature of the operations allows experts to exclude three other countries. "We firmly believe that this activity can be attributed to a Russian threat actor operating with the support of the state," said Xavier Belkens, CEO of cyber security company Lufobis. The data she collected on pot attacks (special traps for hackers) pointed to a "state-sponsored group," Belkens explained. He called the knowledge needed to do this, such as understanding industrial control systems and cooling technologies, "non-trivial." The servers used by the attackers were also used by Russian groups some time ago. The repetition of these attacks is another factor pointing to Moscow's involvement, Belkens said. On Monday, refrigerators and freezers broke down in supermarkets in at least nine countries in the European Union. Stores in Belgium, Luxembourg, Sweden, Germany, Ireland, the Netherlands, Estonia, Finland and Romania were affected by the cyber attack.