I would say to check the first and last 5 characters of an address and also 5 in the middle, as someone who creates vanity addresses might be able to come up with an address with the first 5 and last 5 the same as your real address. In fact, I know that this is already happening, so I would add to verify 5 more characters in the middle. Also doing voice verifications adds a layer of security as well, so for example, say your friend is sending you a btc address, it should be followed with a voice message from him with the first, middle, and last 5 digits.

Most of this has already been addressed and mentioned in above posts.

One of the best things Satoshi did was invent bitcoin. Even better  was that he disassociated himself from it. Lets just hope Satoshi will continue t I strongly believe Satoshi is out there, alive and well, however the chances that he surfaces are slim to none. It's for the good of bitcoin. Satoshi did his job.

Yo
As far as the computer that had the clipboard malware installed, it will not be involved in the process of moving to a new wallet as a precautionary measure.

He apparently has a ledger wallet that we are going to move the funds,  and I will be showing and explaining how to set up a bip39 passphrase as an option.

I will also make him aware of the need to verify address ALL OF THE TIME regardless of whether you are using a cold wallet or not.

As far as the old computer is concerned, he is going to wipe the drive, and re-install Windows.

 Just to clear some things up. He is a close friend. I totally believe him that he screwed up. He definitely sent the coins to the scammer address listed above, shown in the txid that I posted. As many have stated above, I do believe his clipboard was hijacked, likely waiting for a bitcoin address, and then inserting the known scammer's address, as stated by bitcoinwhoswho. He certainly was not trying to scam me, to get away from paying, as he already agreed to pay me.

Yes, indeed, he was using a hot wallet on his computer to send the funds, I believe it was web based. Honestly, I was unaware of his system, and I was shocked to hear that he was using blockchain wallet on his computer.

We are going to create a new wallet on hardware device, to create an address, then we will import his current wallet to the hardware device, and send those coins to the newly created wallet......  So we are taking precautions. I told him he needs to secure his mnemonic phrase immediately, then after the coins have been secured, wipe and re-install his operating system.

Honestly, the method I am using, I believe is secure enough for my main funds, I don't believe the need to be separated into more than one wallet with my method that I described above. The only reason I have a secondary wallet is to isolate main funds from spending wallet.

It's not necessary to have more than one secure wallet, but nothing stops you from doing so. If you are able and willing to manage that, then fine, but certainly not necessary.

Bitcoin isn’t just money. It’s sovereignty. Secure your coins, and you can cross any border with your wealth intact.
No bank, no government, no gatekeeper can stop you.

I have one main wallet, but I used a truly random method to generate my mnemonic phrase, using dice rolls, verified by a python script to be correct. Furthermore, I have added an additional bip39 passphrase which is kept in a separate location, and it's all secured by an antiphishing hardware wallet. This is where my main coin are, then I also have another wallet with less coins.


A quantum computer with at least 1 million qbits is necessary to have a chance at cracking bitcoin addresses, and we are far, far away from being able to achieve that. I am not concerned at all by quantum threats.

My friend has recognized that he is at fault, it was on his end. He is going to send me another $1,000 USD in btc, this time, we will check things carefully.

yup, I am already in communications with him. I will help him take the appropriate measures, thank you. How terrible that this has happened.

o.k thank you, so he was essentially scammed. I just sent him a message to no longer touch that wallet, and to import his seed onto a new wallet on a separate device.

Yes, he actually received the correct btc address, which he copied he says.....

Hello to everyone.


I have a friend that owed me about $1,000 USD. I asked him to pay me in btc and provided him with a bitcoin address. After the funds never arrived at my wallet, I contacted him. He claims to have made the payment the day before shortly after I provided my btc address, and he gave me proof by providing the following txid: dd1911398dddf7ffa3a698ad66ceafd17b3002f5fa0d8dfe2734f7fa84eef347.  The amount of 0.00925060 btc was supposed to arrive at my wallet, but it did not!

When I took a close look at this transaction, I realized that the funds he sent did not go to my wallet, instead they arrived at this other wallet that appears to have been established sometime in 2020 and has a balance of 4.65 btc. This wallet has received about 228 transactions, mostly active in 2022, but also active other years as well. The wallet has also received transactions as part of a batch sent to other wallets as well maybe coinjoin?

I sent my wallet address to my friend using a messaging app which he says he copied and pasted. on to his wallet. The wallet he uses is blockchain wallet......  Any information would be greatly appreciated.

Once you come out of a mixer or coinjoin, you could send your coins 2 or 3 more times to other addresses, within some time. Maybe something like this will help. I can't help but think that if mixers and coinjoin were such a problem, that you would see accounts frozen and flags all over the place and we are not seeing that. I know accounts do get suspended, but is it really happening at such a high level? Does not appear to be the case. Coinjoin has a lot of daily traffic.

Why do you want bitcoin to pullback to 20%? When you look at the 4 year cycle, no matter what price you bought at, you "are in the money". Furthermore, There will be no warnings about price fluctuations, but you should not be worried about fluctuations if you are a long term holder. Again I point you to the 4 year cycle..... 

Buy and hodl for the long term. You'll be o.k.

I totally agree. I will be setting up my own node, with private electrum server next. Going to native segwit was the first part, should have mentioned it in previous post.

I have since moved my addresses to native segwit. I thought about this, and the main reason for doing so, was privacy, since most addresses being used on network are bc1q. Therefore I feel that I fit into the crowd better, vs using 1- legacy addresses stand out.

For those who talk about corrections and mention history, BTC is much more mature than it used to be. You might see corrections, but unlikely like in the past. I doubt it will go below 100k ever again, honestly. We are seeing some of the last moments to buy it cheap.

I won't give you advice, however I will mention two things. 1) Dollar cost average is the most sensible way to invest in bitcoin. If you are not familiar with it, look it up, you will find plenty of information on it and 2) Time in the market > (is greater than)  timing the market. Make what you will of those two things.