Definition ∞ Data Withholding Attacks represent a type of security breach where a participant or group deliberately prevents honest network nodes from accessing necessary transaction data. This action obstructs block validation or the proper functioning of the network. It directly threatens data availability and network liveness.
Context ∞ Data withholding attacks pose a serious threat to the operational continuity and security of blockchain systems, particularly in rollup solutions that depend on off-chain computation. Developers continuously work on cryptographic proofs and economic incentives to counter these attacks. This ensures all required data remains accessible for verification and reconstruction of the chain state.
Blockchain Knowledge
Cryptocurrency Foundation
Cryptospace Newsfeed
