Ukraine has banned the installation of the Telegram messaging app on state-issued devices for government officials, military personnel, and workers in defense and critical infrastructure sectors due to cybersecurity threats posed by Russia. The ban, announced by Ukraine's Security and Defense Council, is a precaution during the ongoing war with Russia. Concerns have been raised about Telegram being exploited for cyberattacks, phishing schemes, and tracking user locations. Exceptions to the ban are allowed for individuals who need to use the app for official duties, while Ukrainian citizens can still use Telegram on personal devices. President Volodymyr Zelenskyy is expected to continue using the app for communication with the public. Ukraine's intelligence chief, Kyrylo Budanov, has expressed concerns about the app's security vulnerabilities, emphasizing the need to prioritize national security over freedom of speech in this context.