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'Lockdown' exploit prevented in Opera Internet Browser

Hi,

 

On one machine (Windows 10 2016 LTSB) we're getting a message of 'Lockdown' exploit prevented in Opera Internet Browser.

Even after reinstalling Opera cleanly, and removing AppData and Program Files directories relating to Opera.

 

We have other W10 machines with Opera installed, with no issue.  Is there any particular reason Sophos is blocking Opera specifically on this machine?

 

Cheers.



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