Russian Hackers Target Microsoft 365 Accounts with Device Code Phishing
Volexity highlighted how Russian nation-state actors are stealing Microsoft device authentication codes to compromise accounts
Nation State reporting covers malware, threat actors, infrastructure, reported incidents, disruption efforts, and defensive guidance for organizations.
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Background for this topic.
Nation-state activity is cyber activity conducted, directed, or supported by a government, including espionage, disruption, or theft of sensitive information. The label can also cover suspected government-linked actors; attribution is often uncertain and may reflect intelligence assessment rather than publicly proven control.
For practitioners, reporting under this tag can indicate risks to government, critical-infrastructure, research, or strategic commercial networks, particularly through exposed systems, stolen credentials, or exploitation of unpatched vulnerabilities. Useful responses include prioritizing vulnerability remediation on internet-facing assets, enforcing strong authentication, limiting access to sensitive systems, and retaining logs that support investigation. Threat intelligence can help assess whether observed infrastructure or malware resembles activity associated with a state, but defensive decisions should rely on the technical evidence and the affected organization’s risk, not attribution alone.
Volexity highlighted how Russian nation-state actors are stealing Microsoft device authentication codes to compromise accounts
Symantec found that tools previously only used by Chinese nation-state espionage actors were deployed in a ransomware attack
Microsoft found that Russian state actor Seashell Blizzard has deployed an initial access subgroup to gain persistent access in a range of high-value global targets