HOW ROBINHOOD USES GRAPH ALGORITHMS TO PREVENT FRAUD

Summary from the TLDR Web Dev newsletter

Robinhood uses graphs to represent relationships between user accounts. To combat fraud, it uses vertex-centric algorithms (BFS, DFS) for targeted exploration and graph-centric algorithms (Connected Components, PageRank) for broader network analysis. The company uses graph databases to store and query graph-structured data with built-in analytics.