Theoretically, there is not unbreakable protocols. Even the most battle-proved platforms had a couple of bad days in their past. SECURITY Rating 'b+' and higher to those very few projects which meet all major safety requirements such as an impeccable consensus algorithm, absence of registered protocols breaches, continuous code upgrades consistent with rising threat level, periodic code audit, bounty programs for hackers etc. (Focus area: safety and resilience)

To view rating details or to add one of your own click on the corresponding field in the table column (for 'How to rate a project?' see Guide)