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Attention for Customers without Multi-Factor Authentication or Single Sign-On - OTP Verification rolls out April 2025. Read all about it here.

Thanks for the response, this is exactly why I have been going round in circles with it myself. As you say, once the file is open then anyone with an understanding of how the security was implemented can remove it.

 

Its not a case of hiding things from third parties, I need to control who can see what within the company.