Hello, I have some questions about bitcoin and its wallet. My friend is getting paid for his business with bitcoins for anonymity. The payment is over $50,000 so he's worried if that will be safe. Or is there any other payment method for secure and anonymous transactions, please do share. He wants it to be safe and also not leave any paper trail to avoid taxes. (1) Is there any limit to how many bitcoins I can receive, withdraw or deposit ? (2) When making a wallet lets say blockchain do I need any id to deposit, withdraw or transfer ? (3) My friend wants to be paid with bitcoins but we're talking more than $50,000 of bitcoins so is that transaction safe ? (4) Is there any way for the authorities to know who's making transactions and how much ? (5) Is if safe to store large sums of money(bitcoins) in the wallet ? (6) Which is the safest and best wallet? (7) How to withdraw bitcoins without letting income tax know about it ?