MEF is a global body involved heavily in the dissemination of information in regard to messaging services. Whilst they may have swallowed too much RCS Koolaid and their opinions are a little unbalanced by their funding sources, they do for the most part prepare excellent insights into the emerging issues in the industry. Sometimes their articles are a little persuasive in favour of their financial backers – however, their research mostly represents most of the facts.
You can read their whole GDPR industry insights by following this link.