Russia-linked APT28 use Signal chats to target Ukraine official with malware securityaffairs.com/179288/ap…

Russia-linked cyberespionage group APT28 is targeting Ukrainian government officials using Signal chats to deliver two new types of malware, tracked as BeardShell and SlimAgent. While Signal itself remains secure, attackers are exploiting its growing popularity in official communications to make their phishing attempts more convincing.