How safe is Uniswap?

Could you elaborate on the safety aspects of Uniswap? As a decentralized exchange, it's intriguing but also carries some risks. How does its security mechanism work? Are there any vulnerabilities that have been identified? What measures has Uniswap taken to protect user funds and transactions? I'm particularly interested in understanding how it compares to other centralized exchanges in terms of safety. Is Uniswap's smart contract audited regularly? How does it handle hacks or security breaches? I'd appreciate a comprehensive overview of its safety features and any potential risks involved.