I should add I am not doing anything ultra secret, just want general privacy from snoopy governments in case I made some small bitcoin purchase and forgot to fill out a bunch of tax paperwork for it.

I have a stack of Coinbase KYC Bitcoin in cold storage, using a hardware wallet.

I would like to Whirlpool Coinjoin mix my KYC coins for better forward privacy. I would like to use the minimum number of wallets, steps and keys to achieve privacy.

In Sparrow wallet you have to open a "hot" software wallet to Whirlpool them.

If I send my KYC coins to the new hot wallet, mix them, and send them back to the original cold storage (using new and unique receiving addresses, of course) wallet where the KYC coins were stored before...

Will the mixed coins be private if sent back to the originating cold storage wallet (which held or still holds some Coinbase coins) l as long as I practice proper coin control (e.g., never combining mixed coin UTXOs with Coinbase UTXOs)?

Or, is a wallet "contaminated" with my identity once it received a lot of KYC coins and it would be most private to send the mixed coins to a new wallet?

What is the simplest way for my to get my Coinbase funds out of Cold Storage, mix them, and send them back into cold storage without losing my privacy on the new coins?

This 'independent journalist' on Twitter says the Feds filed a warrant and may have seized it from a custodial wallet or exchange:

https://twitter.com/JordanSchachtel/status/1401996717394960389?s=20

From what I can tell Blue Wallet is Coldcard compatible and I shouldn't have to enter any private keys into it. Just export a wallet file (containing my public key) from Coldcard to Blue Wallet... and hopefully / apparently my private key stays on the Coldcard.

I'm looking at Sparrow now and it says it has "internal tor." Does it have to be configured or does it just work like Wasabi?

Can someone familiar with both Sparrow and Wasabi confirm if Wasabi has any additional privacy advantage when it comes to your IP address?

I got my Coldcard set up with a seed word for my main #1 stack of BTC (HODL only and hopefully not spend) and a passphrase that will be used to secure my, separate #2 stack of BTC / Lightning (will be spent from and replenished fairly frequently).

I am using OS X / iOS. I would like a desktop wallet for my main stack and also a mobile wallet to house my #2 stack so I could visit a Bitcoin ATM with ease, make Lightning purchases, etc.

For desktop: Sparrow looks like elegant & well-documented software and Wasabi looks a little less polished. It sounds like Wasabi is highly integrated with Tor and there is no logging of IP address whenever I connect to the network through it. It sounds like Wasabi is the most private option for beginners.

For mobile: I am looking at Blue Wallet for mobile. Is there anything better for iOS?

It sounds like if I export my Coldcard #2 passphrase wallet file to Blue Wallet and use Blue Wallet for my #2 small purchases / Lightning stack... then the Blue Wallet app developers or public server used by BlueWalet would know that my phone's IP address is associated with my #2 stack. But a chain surveillance firm or authoritarian government would not know who owned the #2 stack unless my purchasing habits left clues.

If I set up a watch-only stack #1 wallet and spendable stack #2 wallet in Blue Wallet - then Blue Wallet would know my IP address was connecting to both wallets? I would need to use a mobile VPN every time to block my IP address if I wanted a mobile 2 wallet setup in something like Blue Wallet? Can they tell information like my phone number or email address which is stored somewhere in iOS?

Thank you for reading and if you have any better suggestions for relatively private way for a new bitcoiner to keep 2 stacks.. one desktop and privacy not too important + stack #2 mobile, relatively private and separate from the first one... please let me know!

 

Is an airggapped Coldcard with a main wallet and a #2 passphrase wallet "pretty good privacy" & security for a beginner to hold 2 stacks of BTC that don't appear at all connected on the blockchain or elsewhere?

I can't really afford new wiped computers, running nodes, etc, after buying this latest dip.

I am new to Bitcoin and want to set up 2 separate wallets or "stacks" of Bitcoin to HODL in cold storage. What is the easiest way to have two separate, relatively private (unconnected on the blockchain) stacks of BTC with the minimum number of devices, keys and passwords / phrases to manage?

I was considering putting Coinbase funds on a hardware wallet and then setting up a "passphrase" for an additional wallet (on the same device) to store my P2P coins. Will that keep them separate on the blockchain or can 3rd party observers see that one public key controls both those 2 different wallets and see the balances for each?

Or do I need two hardware wallets for better privacy?

thank you in advance.