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Security Tip of the Week

Security Tip of the Week – Tricky PDF Files

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  • Posted by: Michaela Kunkler

Cybercriminals have a new favorite phishing lure: PDF files. A PDF is a standard file type that presents text and images in their original format regardless of which program you use to open the file. Unfortunately, this makes the use of PDFs a great way for cybercriminals to get creative and trick victims into clicking on malicious links. 

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One common tactic for phishing with PDF files is to include an image that looks like something that you should interact with. The PDF may include a fake captcha image with the “I am not a robot” checkbox. Or the PDF may include an image of a paused video with a play button over the display. If you try to click the captcha checkbox or play the phony video, you’ll actually be clicking a link to a malicious website.

Don’t fall for these tricks! Remember the following tips

  • Never click or download an attachment in an email that you were not expecting.
  • Remember that cybercriminals can use more than just links within emails to phish for your information. Always think before you click!
  • If you receive a suspicious email, be sure to contact your IT department or follow the specific procedure for your organization.

Stop, Look, and Think. Don’t be fooled.


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DISCLAIMER : Any non-technical views expressed are not necessarily those of Keller Schroeder or its employee-owners.