Password recovery is like sailing a small boat on an endless ocean, casting a net in the hope of catching the only small fish in the vast sea...
1. Introduction
"My relative went away, and we found this Bitcoin wallet on his computer. Can you help us recover it?" "My friend is a miner; he is a very reliable person. He gave me this wallet, and I spent 3.6 million to buy 20 high-end machines for recovery, but after running for half a year, I still haven't succeeded. You have experience; can you see what the problem is?" "My friend owes me money and won't pay it back; he gave me this wallet as a settlement. Can it be recovered?"
To the trolls: "If you don't believe me or don't understand, I don't have time to try to convince you, sorry." - Satoshi Nakamoto
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In the last sharing, I briefly mentioned that SafeWallet also has a mnemonic phrase and password generation for addresses. Some people said I was promoting the SafeWallet wallet, as if using this wallet could bring me so many orders. Let me state a few facts, and everyone will understand.
1. SafeWallet is a fully open-source wallet. The code is on GitHub, go check it out yourself. Have you ever seen a fully open-source wallet used to scam people? How many popular wallet apps are currently open-source? You can still criticize it, I really admire you!
SAFE-anwang/SafeWallet-android: A secure and decentralized Bitcoin and other cryptocurrency wallet for Android phones. Supports SAFE, Bitcoin, Ethereum, EOS, Binance Chain, Bitcoin Cash, DASH, ZEC, ... (github.com)
2. SafeWallet open-source wallet has been released for 3 years and has been in development, but I have never received a request for recovering the SafeWallet password. Relying on this to increase orders would leave me starving. SafeWallet keeps the mnemonic phrase and password within the software and does not delete them, so they can be viewed at any time, thus the possibility of losing the mnemonic phrase or forgetting the password is very small. This is why I have not received any requests for SafeWallet password recovery, because there is no need to remember the password. However, do be careful not to lose your phone; adding a PIN code would be safer. SafeWallet itself can also set a PIN code, and it is recommended to do so.
3. There are many cases of mnemonic phrases being stolen; some screenshots are uploaded, some input methods upload, and some note apps upload. Once someone gets the mnemonic phrase, they can transfer the coins away. Adding a password can further ensure security; I don’t see any problem with this. Moreover, adding a password in SafeWallet is optional and not mandatory; it’s a free choice, and the risk is self-borne.
4. There is no absolute security, only relative security. Choosing which wallet to use is your freedom, and you are responsible for your own actions. You can choose not to use it, but do not fabricate falsehoods.
Some netizens say that having a mnemonic is enough, and you don't need to remember the password. This is true for general mobile wallets, but it doesn't apply to certain software wallets and most hardware wallets.
Because when using the BIP39 standard to generate a seed from a mnemonic, these wallets require a password to generate the correct address. Without a password, you cannot obtain the correct address. Examples include KuCoin, Bitcoin Blade Wallet, Trezor's private wallet, and SafeWallet's password-protected wallets.
This method increases security; even if you leak your mnemonic, it's okay as long as the password is complex enough. It would be difficult for hackers to brute-force the password from the mnemonic. However, if you forget the password, recovery becomes very difficult.
Successfully recovered two hardware wallets in early September. One is the old version of the Library God, which cannot be powered on and has no recovery phrase or password. Data was successfully extracted from the chip, but unfortunately, the encrypted information regarding the coin address mentioned by the user was not found, possibly due to the main file being deleted, which caused it to not power on;
The other is a Trezor Model One hardware wallet, which has no recovery phrase and the high-level password was forgotten. After extracting data from the chip and running high-level password cracking with computing power, after two months of effort, it was finally successfully recovered.