--- title: New phishing attack leverages PDFs and Dropbox | daily.dev description: Forcepoint researchers uncovered a sophisticated multi-stage phishing campaign that exploits PDFs and Dropbox to harvest credentials. The attack works by... canonical: https://daily.dev/posts/new-phishing-attack-leverages-pdfs-and-dropbox-pdtkrgw7z twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: New phishing attack leverages PDFs and Dropbox | daily.dev og:description: Forcepoint researchers uncovered a sophisticated multi-stage phishing campaign that exploits PDFs and Dropbox to harvest credentials. The attack works by... og:url: https://daily.dev/posts/new-phishing-attack-leverages-pdfs-and-dropbox-pdtkrgw7z og:image: https://api.daily.dev/og/posts/PDtkrgw7Z.png og:image:alt: New phishing attack leverages PDFs and Dropbox og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # New phishing attack leverages PDFs and Dropbox **[CSO Online](https://daily.dev/sources/csoonline)** · 6 min read · 0 upvotes · 0 comments ## Summary Forcepoint researchers uncovered a sophisticated multi-stage phishing campaign that exploits PDFs and Dropbox to harvest credentials. The attack works by mimicking normal business behavior: victims receive a legitimate-looking email with a PDF attachment that redirects through a trusted cloud service to a fake Dropbox login page. The campaign bypasses standard email filters and authentication checks because each individual step appears legitimate. Security experts emphasize that traditional "don't click links" training is insufficient; organizations need multi-layered defenses including MFA, conditional access, and evolved security awareness training that addresses modern cloud-hosted, multi-stage attacks. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#security](https://daily.dev/tags/security), [#cyber](https://daily.dev/tags/cyber), [#phishing](https://daily.dev/tags/phishing) [View this post on daily.dev](https://daily.dev/posts/new-phishing-attack-leverages-pdfs-and-dropbox-pdtkrgw7z) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"New phishing attack leverages PDFs and Dropbox","url":"https://daily.dev/posts/new-phishing-attack-leverages-pdfs-and-dropbox-pdtkrgw7z","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/new-phishing-attack-leverages-pdfs-and-dropbox-pdtkrgw7z"},"datePublished":"2026-02-03T02:34:04.855Z","dateModified":"2026-02-03T02:34:37.641Z","description":"Forcepoint researchers uncovered a sophisticated multi-stage phishing campaign that exploits PDFs and Dropbox to harvest credentials. 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