Detecting Sybil Addresses in Blockchain Airdrops: a Subgraph-Based Feature Propagation and Fusion Approach

Sybil attacks pose a significant security threat to blockchain ecosystems, particularly in token airdrop events. This paper proposes a novel sybil address identification method based on subgraph feature extraction lightGBM. The method first constructs a two-layer deep transaction subgraph for eac...

Upgraded Q -> M from #72 [1674644492627]

Judge has assessed an item in Issue 72 as M risk. The relevant finding follows: Low-03 NTokenMoonBirds may not be able to receive airdrops Impact For most NToken, some airdrops that are actively minted to the holder's address can be withdrawn and later distributed by the PoolAdmin calling the...