Viber is a technology platform tracked across 2 threat clusters and 2 intelligence report mentions on ThreatCluster. First observed January 5, 2026; most recent activity June 25, 2026.
Viber is a cross-platform instant messaging and voice-over-IP (VoIP) platform used for personal and business communications. The article frames it as a widely adopted service that can be abused by threat actors to conceal communications or deliver payloads, making it a notable consideration for cybersecurity monitoring and defense.
Russian authorities used Cellebrite's forensic tools to access the iPhone of political activist Andrey Pivovarov in June 2021, despite Cellebrite's announcement in March 2021 that it would cease sales to Russia. The…
The Russia-linked APT group UAC-0184 has been targeting Ukrainian military and government bodies through Viber, delivering malicious ZIP files for espionage purposes. This campaign, part of ongoing…