The following are some of the principles that can help in eliminating security threats in a blockchain:  Continuity planning to ensure that the system is safeguarded against downfalls.   Auditing to ensure that security checks are in place.  Securing testing and similar approaches. Testing always ensures that the system is in place in case of non-happy paths.   Database security to ensure the quality of the database.   Securing applications to make sure that application-level threats do not impact the base system.   Digital workforce training.