The Arweave network uses a different version of blockchain technology called Blockweave. It uses a modified version of the proof-of-work consensus mechanism called “proof-of-access (PoA).” Proof of access links the new blocks with the previous and random blocks and generates a hash to create new ones. Since their mining protocol has already been successfully audited by four cybersecurity firms, it is safe to say that Arweave is entirely secure.