MDCAS Policy

[gd2020]

Whats the best way to create a MDCAS policy to block files containing account numbers From any service like O365 products 

[#2]

Hi @gd2020,

It really depends on your exact use case and requirements. I would recommend taking a look at both of these blogs because they speak directly to this.

Generally for files stored in M365 start with Purview and use Defender for Cloud Apps for edge cases.

Introducing the Microsoft Defender for Cloud Apps data protection series - Microsoft Community Hub

Microsoft Defender for Cloud Apps data protection series: Understand your data types

[#3]

Thanks Keith!