Wormhole Cross-Chain Bridge Transactions Flow: An Exploratory Study

Cross-chain bridges are essential for enabling interoperability between diverse blockchain networks. At the same time, these technologies have introduced new avenues for illicit financial activity, such as chain-hopping, a method used to obscure transactional provenance by rapidly transferring assets across multiple chains. This study analyzes cross-chain token flows on the Wormhole bridge, focusing specifically on identifying suspicious token transfer patterns. We propose a methodology inspired by state-of-the-art anomaly detection techniques to identify and examine suspicious transaction patterns. Our findings provide valuable insights into cross-chain analysis and lay the groundwork for developing monitoring systems that can detect and analyze illicit behavior within cross-chain ecosystems.