Hackers Using PDFs to Impersonate Microsoft, DocuSign, and More in Callback Phishing Campaigns
- Posted on July 2, 2025
- By The Hacker News
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Hackers Using PDFs to Impersonate Microsoft, DocuSign, and More in Callback Phishing Campaigns

Phishing campaigns use PDF attachments and callback phishing to exploit brands like Microsoft and DocuSign, affecting businesses and users.