Bitcoin desktop wallet client Electrum has released a 4.0 beta version, adding several important updates, including support for the Lightning network, nearly a year after the previous version of Electrum, 3.3.8 (last July). In the 4.0 beta version, Electrum mainly added features such as PSBT (partially signed Bitcoin transactions), Lightning Network, watchtowers (暸 watchtowers) and Submarineswaps (subliminal switching). (Github)
electrum bitcoin wallet.dat
Down-to-dimensional security: Bitcoin wallet Electrum was hacked and at least 1,450 BTCs were stolen.
Qtum Electrum synchronously updates electrum-related code.
To sum up, wallet.dat is the key file on which the key is stored, so in the past there have been hackers intent on using some malware to search for and steal the wallet.dat archive, or to copy all the contents of wallet.dat and transfer it to the FTP server, which, if obtained, symbolizes that the hacker gained access to all bitcoins in the account, equivalent to the looting of Bitcoin assets, and technically no claim, the loss is not light.
At the other end of the spectrum, some states that are friendlier to Bitcoin ATMs - for example, the Pennsylvania Department of Banking and Securities have determined that cryptocurrency transactions are not subject to the Currency Transfer Act;
and open the web page, then your wallet may have been compromised. Particularly paranoid people may want to send all BTCs from their old Electrum wallets to the newly generated Electrum wallet.
Bitcoin wallet Electrum users face phishing attacks, when users update the client with a back door, the private key will be stolen, so far has been stolen 1450BTC.
Stage: Coin Keeper vs Keeper, Phase 2: Coin Keeper vs Opportunist, Phase 3: Coin Keeper vs Opportunist.
Use BitHD shields and blades to prevent Electrum wallet "message defects" attacks.
As soon as I logged into my wallet, I was asked to provide a two-factor authentication code, which I found a little strange, and usually Electrum only needs it when sending transactions.