a new research blog post published today by Forcepoint’s X-Labs threat research team that uncovers a highly evasive phishing campaign abusing trusted cloud storage and PDF files to harvest user credentials.
In the blog post — “Fake Dropbox Phishing Campaign via PDF and Cloud Storage” — X-Labs Sr. Security Researcher Prashant Kumar details how attackers are now using multi-stage delivery techniques that evade traditional email, content and link scanning by:
- Sending a seemingly benign PDF attachment via a business-themed email that bypasses standard filters.
- Hosting a secondary PDF on a legitimate cloud infrastructure to exploit trust in “safe” services.
- Redirecting users to a spoofed Dropbox login page designed to steal credentials and deliver them to attacker-controlled infrastructure.
This research highlights how trusted file types and cloud platforms are being weaponized to bypass security controls — a significant shift from traditional phishing vectors and an emerging concern for enterprises and users alike.
You can read the research here: Dropbox PDF Phishing Abuse of Trusted Cloud Storage
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This entry was posted on February 2, 2026 at 12:11 pm and is filed under Commentary with tags Forcepoint. You can follow any responses to this entry through the RSS 2.0 feed.
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Forcepoint X-Labs Researcher Reveals Sophisticated Dropbox PDF Phishing Campaign
a new research blog post published today by Forcepoint’s X-Labs threat research team that uncovers a highly evasive phishing campaign abusing trusted cloud storage and PDF files to harvest user credentials.
In the blog post — “Fake Dropbox Phishing Campaign via PDF and Cloud Storage” — X-Labs Sr. Security Researcher Prashant Kumar details how attackers are now using multi-stage delivery techniques that evade traditional email, content and link scanning by:
This research highlights how trusted file types and cloud platforms are being weaponized to bypass security controls — a significant shift from traditional phishing vectors and an emerging concern for enterprises and users alike.
You can read the research here: Dropbox PDF Phishing Abuse of Trusted Cloud Storage
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This entry was posted on February 2, 2026 at 12:11 pm and is filed under Commentary with tags Forcepoint. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.