What are the risks of Aave protocol?

Could you elaborate on the potential risks associated with the Aave protocol? Are there any security vulnerabilities that could lead to financial losses? How about the volatility of the underlying assets in the lending pools? Also, how does the protocol handle liquidity issues, and what measures are taken to mitigate these risks? Additionally, are there any regulatory concerns or compliance issues that investors should be aware of? Understanding these risks is crucial for making informed decisions when participating in the Aave protocol.