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My friend ask me to open a wallet in blockchain and ask me to give the ID and password later he transact certain amount of btc which shows non spendable after which I am asked to change my password and finished 2FA then I was asked to deposit some btc in my wallet to create a transactions history so that non spendable can be made spendable so is it a scam
Can't add much more to it. NEVER EVER give anyone access to your wallet EVER. Unless it's already gone to hell and you're attempting to pay/beg someone to help you recover it. In that scenario never put money into that wallet again. Once you regain access, move anything into it to a new wallet. Remember, the owner of the wallet is the person who has the ability to create a transaction and move amounts away from it. – cleanmarker – 2018-12-21T17:10:56.493
See also linked questions in answer to https://bitcoin.stackexchange.com/q/74362/13866
– RedGrittyBrick – 2018-12-22T00:34:18.030