No information system is 100% secure. Even those who are considered safe today will not be safe tomorrow, given the ability of criminals to find new methods of attack.

Blockchain is a technology that is attracting much attention today, but there are still criticisms that question the scalability, security and sustainability of this technology. While some blockchain technologies provide data privacy, integrity and availability, they also require cyber security controls and standards to protect against external attacks in organizations that use blockchain.

The "Blockchain and Ciber Safety" report, which reflects a common view of Deloitte member companies worldwide, offers an analysis that assesses the safety of blockchain technology in particular.