Businesses deploying blockchain technologies lack clarity regarding potential EU General Data Protection Regulation compliance, Bloomberg Law reports. Blockchain data is retained and stored without the ability to delete, which brings potential violation of the right to be forgotten under Article 17 of the GDPR. "This is a completely new area for regulators that raises a ton of issues," Jones Day Partner Jörg Hladjk said, noting how data protection authorities must address potential liability, legal bases for processing and how to exercise data subject rights.