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GerJMG's avatar
GerJMG
Copper Contributor
Apr 05, 2023

Windows Defender blocking all PDF attachments from opening.

Hi everybody,   I am currently experiencing an issue with a client where a User can't open any PDF attachments from Outlook because it is being blocked by Windows Defender with this message:"Your I...
Intune
mobile device management (mdm)
Software Management
Moe_Kinani's avatar
Moe_Kinani
Bronze Contributor
Apr 06, 2023
Just pdfs or all attachments?

Moe
GerJMG's avatar
GerJMG
Copper Contributor
Apr 06, 2023
I'll double check on that, but I'm 90% confident that only PDFs are being blocked.
  • Seeker190's avatar
    Seeker190
    Copper Contributor
    Jun 19, 2023

    GerJMG 

     

    Did Microsoft provide an explanation or root cause, because it's also happening in our company O365 email. 

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