Only the Portfolio NFT owner can call bridges that affect its portfolio funds, so the only way a bridge can impact the funds is if the Portfolio NFT owner called them. Once bridges are called, they have complete control over wallet funds, so it is of utmost importance to only call bridges that are trusted.
Bridges that have not been reviewed by the Picnic team are considered untrusted by Picnic and will not be present by default in the UI. If you want to interact with untrusted bridges you may encounter malicious intent or unreviewed contracts that might be extra-risky.
Note: a successful audit is not a silver bullet. While it does significantly lessen the risk of a hack, it does not guarantee that our contracts or contracts that Picnic integrates with (such as Aave, Autofarm, etc.) will avoid hacks.
Every action on a DeFi protocol carries all the risk embedded in that protocol, be it smart contract risk, risk of liquidation at loss, or simply price risk. DeFi assets also have their own share of risks: some tokens can black-list addresses or even became undercollateralized, and as such, some tokens may lose value or even become worthless.
In order to mitigate this kind of risk, we are prioritizing integrations with protocols and tokens that have been battle tested, gone through audits, and that have significant value locked into them.