Russian Hackers Use Zulip Chat App for Covert C&C in Diplomatic Phishing Attacks
An ongoing campaign targeting ministries of foreign affairs of NATO-aligned countries points to the involvement of Russian threat actors
Phishing uses deceptive messages to steal credentials or deliver malware, while user verification, MFA, and email filtering reduce the risk.
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Background for this topic.
Phishing is deceptive communication—by email, text, phone, or a fake website—that impersonates a trusted person or service to make someone disclose credentials, approve a transaction, reveal sensitive information, or run harmful software. Attackers use it to bypass technical controls by persuading a legitimate user to perform an action, and may target employees, customers, administrators, or suppliers.
Its impact can include account takeover, unauthorized payments, exposure of personal or business data, and access to internal systems. The most effective control for stolen-password phishing is phishing-resistant multi-factor authentication, such as hardware-backed passkeys or security keys, which binds authentication to the legitimate site. Organizations should also filter and authenticate messaging where possible, use password managers, restrict risky actions, train users to verify unusual requests through a separate channel, and provide rapid reporting so suspected credentials or sessions can be revoked.
An ongoing campaign targeting ministries of foreign affairs of NATO-aligned countries points to the involvement of Russian threat actors
Threat actors' use of Cloudflare R2 to host phishing pages has witnessed a 61-fold increase over the past six months
Is your organization constantly under threat from credential phishing? Even with comprehensive security awareness training, many employees still fall victim to credential phishing scams