Very important topic, it's quite concerning how personal data is harvested everywhere just to be sold later. Even sold to some shady scammers or criminals on the darknet. As long as it's profitable, this will be done and selling data will get more profitable in the future.
Still have doubts that it's not an issue when your data is leaked / sold to the darknet?
Ledger's hack of personal user data resulted in people getting threats to be robbed:
This issue has been prevalent over the dark web from long time and your personal information is being sold for different illegal activities and we are aware about these issues so that's why we need to remain anonymous and there are different ways in which security is compromised and this thread throws light on it.
Ledger hack is another example that like they have your personal data outsource to third party software but it's really risky as we have seen some Employee Id being compromised of Mailchip and your data is at risk.The scammers will have full access to your mails and then start the phising scam attempt with fraud emails and you will be giving them away your funds with entering your seed phrases.So there is risk in these ways also.
I really like Bitcoin's public, pseudonymous nature and the fact, that it's up to us to protect our privacy. But at the same time we should be aware that it's crucial to protect our privacy.
Like dangerous KYC. Once linking your coins to KYC data, these transactions are tied to your name. Even mixing them afterwards doesn't change that. All transactions are stored forever in the public blockchain.
Once a criminal knows about your (high) Bitcoin balance and your physical address, it can end very badly, when the data is sold to local criminals in your area.
Mostly these things occur when your are storing your coins on exchange and they ask for these KYC norms ending up your privacy and then also they will have eyes on you putting restrictions on your account to withdraw the funds.
Not just disregard, but active encouragement. In the US at least, government agencies are not allowed to enter your premises and search your belongings or your devices without a warrant, but there are absolutely no laws preventing them from buying your data from data brokers, blockchain analysis companies, or other third parties.
The NSA related movies are inspired from these things only and they want to keep track record of everyone with surveillance and you can see most of the exchange providing them these data of the users and whole work is done by them but you know the reality.Like the last news of Binance selling data to Russian agencies was in talks.
If you can, run your own email server. If you cant, use ProtonMail. Use PGP to encrypt everything.
Proton is really cool alternative but remember the password as recovering it is hard because it's not your normal email that can be reset with anyone.