Bookies and sportsbooks rely on monitoring techniques to prevent arbitrage fraud from invading their books. Betting behavioral analysis is one way for the sportsbook to identify ‘arbbers.’ They look for betting patterns like large bets with odd amounts or bets in weird markets. What tips of the sportsbook is a long winning streak that is statistically improbable. Bots that require no human interaction can be the source of problems; they place bets or make purchases without intervention. Detection methods like rate limiting, device fingerprinting and IP tracking help when looking for unethical activity.