0.33 BTC in wallet was silently stolen

CryptoLola
4 min readAug 1, 2022

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A fan asked me why the 0.0068 BTC in his wallet suddenly disappeared!

Searching for the wallet address, it can be seen from the on-chain transaction that the transfer was transferred from Huobi to the wallet on March 14, and was transferred 7 hours later.

After transferring through 2 wallets, and finally transferring to Huobi, it should be sold.

After he transferred it to the wallet, he didn’t pay attention to it again; until today, when he logged into the wallet again, he found that the bitcoins were gone, and it was basically impossible to retrieve them.

The btc in the wallet was transferred

He said that he converted the private key on the bip30 site and imported his own mnemonic to generate the private key on the site.

Hearing this, I knew that he was “hit”. If he leaked his mnemonic phrase on any website in any way, the wallet would not be safe.

Private key conversion on the bip30 site

I remembered another friend some time ago. He used another wallet, and the 0.33 bitcoins in the wallet were also gone.

He said that he didn’t authorize the special site, and he didn’t leak the mnemonic phrase. He didn’t understand why it disappeared.

From the information on the chain, his bitcoins were transferred to a wallet address with a prefix of 33wfhz, and this wallet continued to receive multiple btc transfers of varying amounts from different wallets.

These amounts ranged from 0.01 to 0.8 BTC, with a total of 18 transactions and 3.24 btc received. It seems that the network is collected from different channels and the bitcoins are stolen from different wallets, which is a planned behavior of hackers.

If you don’t know which part of the digital wallet is targeted by hackers, the assets will be difficult to protect, and it is hard to prevent.

Hackers steal btc from various wallets

The decentralization of the blockchain is a double-edged sword. Smart contracts execute all transactions on the chain.
Once your mnemonic is obtained by others, anyone can operate your wallet, and the mnemonic is the only credential.

Some new players entered the blockchain for the first time and started to use digital wallets, but did not do their homework first in the process of using them, resulting in the wallet being stolen.

As long as the wallet assets are stolen, there is basically no possibility of getting them back.
Hackers are like no one on the blockchain, and they set up some traps in a certain link. As long as your wallet is additionally authorized, it is easy to steal the wallet balance.

The decentralized nature of the chain makes the victim completely unaware of who to turn to, where the danger comes from, and which link fails, resulting in irreparable losses.

Bitcoin current price $23k

There are basic thresholds for the use of digital wallets.
You must first understand the logic and protect the mnemonic words before you can avoid losses. Otherwise, you are working for hackers.

According to relevant statistics, since January 1, 2022, hackers have successfully stolen $1.97 billion from 175 projects in 6 months, and there are also large and small assets stolen by retail investors.

New players don’t do their homework, so they have to lose their memory over and over again, and every time they pay for it is very expensive.

Hackers stole $1.97 billion from the chain in 6 months

When using a digital wallet, you must remember: protect the wallet mnemonic.

Any time, any platform that requires the input of the mnemonic phrase is problematic. Do not enter the mnemonic phrase on a platform other than the wallet.

Don’t take screenshots to save the mnemonic, because many apps may read the picture information and steal the mnemonic.

When you need to use a wallet to log in to a project website, it is best to use a dedicated wallet. Large-asset wallets are only used to “store” various coins, and do not interact, because once authorized on a strange site, there may be certain risks.

Of course, it is still necessary to improve the basic knowledge of wallet usage. Anyone may covet your wallet, and only you can be responsible for your wallet.

Wallet usage FAQ

If these are too troublesome, it is better to find a large trading platform, at least the anti-theft measures of the platform may be more complicated and multiple settings.

From passwords, emails, validators and other multiple verifications, although it is a little more troublesome, it is relatively safe for funds.

In any industry, any game, learn first and then make money, otherwise tuition will be very expensive.

The above is just my personal opinion and summary, no investment advice, any investment behavior of readers has nothing to do with the author.

I’m Chuxiaolian (Twitter: @lolajiang2), I’m learning about blockchain, paying attention to metaverse and NFT and web3.

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CryptoLola

I am a content creator, a self-media. I mainly focus on NFTs, Metaverse, Blockchain, etc.