Vaas is a Brazilian startup specializing in developing technologies to combat financial fraud, primarily focusing on cryptocurrency transactions and extending its services to combat Pix-related scams. They employ artificial intelligence to analyze the complete transaction history of cryptocurrency wallets to detect suspicious or atypical activities. Additionally, Vaas collaborates with various institutions, including B3, to cross-reference data and enhance their anti-fraud efforts. This integrated approach helps them provide comprehensive monitoring services to banks and other financial institutions for a fixed monthly fee.