Is AI a security risk?

Could you elaborate on the potential security risks posed by AI in the realm of cryptocurrency and finance? How might the increasing sophistication of AI algorithms impact the safety of digital transactions and the protection of sensitive financial data? Are there specific examples of past or present AI-related security breaches in this industry that we should be aware of? Furthermore, what measures can be taken to mitigate these risks and ensure that AI is utilized in a secure and responsible manner within the cryptocurrency and finance landscape?