Don’t open the PDF attachment

Posted: Friday, May 24, 2019

Author: Robert Ward

The last few months have seen a big increase in malware attacks using PDF email attachments, according to security firm SonicWall. Attacks steal login details by tricking the user into opening malicious PDFs that use remote document loading mechanisms to capture and leak your credentials. Other strategies rely on encouraging users to click on a link in an email that will lead them to infected webpages.

SonicWall reports that its sandbox products found 47,000 new attack variants using PDF attachments in 2016 and this year, they detected over 73,000 new attacks in March alone – and more than 173,000 new variants altogether in the first quarter of 2019, all a mix of malware and links to infected sites.

We believe that one of the most important cyber security actions for businesses is to train their staff in email security, because phishing is difficult to defend against. Read our guide to email security here.

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