The question of data portability, in its many forms, has long been an antitrust issue. This stems back as far as the Microsoft interoperability cases of the 1990s, or even further (notably such as in telecoms markets).
Today, however, data portability has taken on even greater importance in antitrust discourse. Like many concepts, it is a double-edged sword.
On the one hand, regulators wish to ensure that competitors are not foreclosed by dominant platforms who maintain walled gard...