According to the Ponemon Institute, 23 percent of breaches are caused internally, by accident or by malicious intent. …
A Breach Is a Breach Is a Breach
End users will never be controlled. This can jeopardize data breach laws and damage corporate reputation, which doesn’t even consider the collaboration aspect.
Yes, there is a risk of data breaches through sharing or sending files by accident.
Yes, most systems don’t take care of a role-based model changing security settings, when somebody changes job role.
But … for me the lack of sharing and the losses due to not collaborating – and yes cross boundaries, too – are the much bigger problem hurting the bottom line.