Ukrposhta, Ukraine’s national postal service, announced system malfunctions following a cyberattack overnight going into Thursday. In a brief update, the state-run postal service said it is working to restore operations and would provide updates as they become available.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official. “Due to a nighttime hostile attack on IT systems, the Ukrposhta application is temporarily malfunctioning,” the update says. “Our specialists are already working on the restoration. We are doing everything we can to ensure that you can return to convenient use of the application as soon as possible,” it adds. Ukrposhta’s update made no mention of the nature of the cyberattack, the extent of the damage, or who was behind it. Hybrid threats from Moscow While no evidence points toward Russian involvement in the latest cyberattack, Russia has in the past hacked Ukrainian institutions before and after the 2022 invasion. In 2017, Ukrainian institutions were hit by the malware known as “NotPetya.” The attack was spread through backdoor access to a widely used accounting software in Ukraine and disguised as ransomware, though its real purpose was to wipe data regardless of whether a ransom was paid. The UK government later said Russia – and specifically its military – was behind the attack. In December 2023, Ukraine’s largest telecom operator, Kyivstar, was targeted in a cyberattack that led to an extensive network outage after parts of its IT infrastructure were wiped from its servers. Authorities later attributed the incident to Russian hackers.