Security

Quantify security is not that simple (and out of the scope of this project).

PPoS is secure as soon as a supermajority of the stake is in non-malicious hands.

PPoS is provenly fork-less, ensuring blocks' instant finality.

Block proposer election and block validation remain secrets until accomplished, preventing malicious users to DDoS, corrupt or threat honest nodes.

Moreover, Algorand State Proofs secure Algorand's history with post-quantum resistant Falcon signatures.

A quantitative attestation of Algorand's security is represented by the fact that, at the time of writing (Sep 2023), Algorand never experienced a downtime nor a reorg since the genesis block (June 2019).