Microsoft’s original vision for Office 365 Groups emphasized openness. Anyone could create a group and all groups were public. The aim was to foster collaboration and make sure that anyone could join in any group discussion as they liked.
Time passes by and software matures in the fierce heat of customer opinion. The original dedication to openness is less than it was. A group creation policy allows tenants to restrict the creation of new groups to a limit set of users. Teams hides groups that it creates from Exchange clients to avoid the chance of confusing users and Yammer-originated groups are invisible anywhere outside Yammer.
And now, Microsoft has decided to change the default access type for a group from public to private to satisfy the third-highest rated request for Groups on Uservoice, the place where customers voice their opinion about changes they’d like Microsoft to make.