Malicious Data Deletion

Definition ∞ Malicious Data Deletion refers to the intentional and unauthorized removal or corruption of data within a blockchain or its associated systems. This action can severely compromise data integrity and disrupt network functionality. It represents a direct attack on information reliability.
Context ∞ While blockchain’s immutability generally prevents malicious data deletion on the primary ledger, vulnerabilities in off-chain systems or specific protocol implementations can expose data to such attacks. Security advisories and incident reports in crypto news often address the risks and preventative measures against unauthorized data removal. This is particularly relevant for sidechains or decentralized storage solutions.