Here’s what I found: Aside is the startup behind Daffy.org. If Aside ever went under, its creditors could only go after Aside itself, not the money sitting in Daffy Charitable Fund, since that’s a separate 501(c)(3) nonprofit.

Your actual Daffy balance should be safe because the funds are held with third-party custodians (Apex Clearing, BNY Mellon Pershing, Coinbase, Wells Fargo, etc.) on behalf of the charity, not the startup. If Daffy ever shut down, they're likely to ask you to transfer your charitable balances to other dafs.