Cybercriminals Use Malicious PDFs to Impersonate Microsoft, DocuSign, and Dropbox in Targeted Phishing Attacks

Cisco’s Talos security team has uncovered a surge in sophisticated phishing campaigns leveraging malicious PDF payloads to impersonate trusted brands like Microsoft, DocuSign, and Dropbox. According to a recent update to Cisco’s brand impersonation detection engine, these attacks have expanded in scope, targeting a broader array of well-known organizations with deceptive emails designed to exploit […]

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