> For the complete documentation index, see [llms.txt](https://wimpy.gitbook.io/welcome-to-tezos-nfts/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wimpy.gitbook.io/welcome-to-tezos-nfts/introduction/security.md).

# Security

Always remember: if you do not control your private keys, you do not control your tokens.

Never share your private keys with any person or entity. Best practice is to write and store your keys on hand-written notation. Saving your keys digitally or keeping a photograph exposes you to more security risks.

**Cold Storage**

When possible, we recommend storing your tokens in ("cold" storage) a hardware wallet like [Ledger](https://www.ledger.com/) or [Trezor. ](https://trezor.io/)

This method provides heightened security because your wallet is no longer "hot" or connected to the internet.