Privacy and Security
We do not want complete interoperability at all times and in all places. In certain contexts, it can introduce new vulnerabilities, and it can exacerbate existing problems. Privacy and security risks are, of course, the primary concerns when it comes to interoperability. An interoperable system has, by its nature, more points of open access to data. These points of access render systems vulnerable to bad actors—ranging from marketers to hackers with ill intentions—who can potentially access and misuse these data, inject malicious code, or otherwise compromise systems.
Sony learned this interoperability lesson the hard way. Sony discovered in April 2011 that 77 million PlayStation Network (PSN) service user ...