While the EU's General Data Protection Regulation (GDPR) was a long time in the making, there are still many unanswered questions surrounding its impact. It is difficult to know how much the regulation, which comes online in May 2018, will change how international organizations manage data, for example, or whether European Union (EU) companies will even be ready for its implementation when the times comes.

Here is a look at three outstanding GDPR questions for 2018.