Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

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Microsoft Internet Explorer PNG tRNS chuck size 1 information disclosure attempt

hello,

I got this intrusion attempt for the first time. just don't know what to do.

I looked for any recent downloads and browsing history, and asked the user if he plugged any device to the computer but nothing suspicious found.

this is a screenshot about the intrusion, 

regards,



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