Foreign exchange risk arises when companies or individuals engage in transactions denominated in foreign currencies. There are three main types of foreign exchange risk: transaction risk, translation risk, and economic risk. Exchange rate fluctuations, market volatility, and political/economic factors affect foreign exchange risk. Companies can mitigate this risk through hedging strategies like forwards, options, and futures contracts, diversifying currency exposure, and using financial derivatives. The case study of Toyota highlights how currency movements impacted its profits and how it employs hedging to offset foreign exchange risk. Understanding and managing this risk is important for multinational companies.