we do not share your data with anyone and there are many ways to control the visibility and storage life of your data here.
but the internet is a public space and you should always assume your data could be compromised.
be smart with your password, use tor or a vpn, and use pgp for sensitive communications.
I'm sorry man I don't have any knowledge of the C cell silo. All I know is if your vape pen/battery/whatever has a screw on 510 thread then these carts will work.→