Add a data management console in Proton Drive at the account management level that allows the account holder or users flagged as part of the business' compliance team to review the data hosted by proton for audit/ATIP/regulatory/statutory compliance purposes.

Features like access logs, versioning, and permission management would be key.

A toggle allowing a business to select a predetermined standard (such as GDPR or the UK Privacy standard) for their organization or user groups within their organization would be ideal. Only a few standards would be necessary overall, as smaller countries and regions usually follow a bigger regime.

This would make Proton a viable option for regulated businesses.