There are some nuances with BIP-32 key derivation (especially of the xpub non-hardened derivation kind) that could invalidate something you wrote:

A private key controls a single public address. It authorizes the spending of funds from that specific location only. Losing one private key means losing access to the funds at that one address.

Note that if you shared your xpub with someone and the same person learns a single leaf private key, they can derive all the non-hardened keys in the set, while hardened keys prevent address derivation without knowledge of the private key.

So you should always be aware that by using xpubs, you weaken your security through the key derivation algorithm itself. Doesn't have to be a huge problem as long as you're really careful with your xpub, though.

bitcoin_beginners

Private Key vs. Seed Phrase: Understanding the Differences

Hypno

There are some nuances with BIP-32 key derivation (especially of the xpub non-hardened derivation kind) that could invalidate something you wrote:

> A private key controls a single public address. It authorizes the spending of funds from that specific location only. Losing one private key means losing access to the funds at that one address.

Note that if you shared your xpub with someone and the same person learns a single leaf private key, they can derive all the non-hardened keys in the set, while hardened keys prevent address derivation without knowledge of the private key.

So you should always be aware that by using xpubs, you weaken your security through the key derivation algorithm itself. Doesn't have to be a huge problem as long as you're really careful with your xpub, though.