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Users of Bitcoin wallet Electrum are facing phishing attacks, according to Johnwick.io. Hackers broadcast messages to electrum clients through a malicious server, prompting the user to update to v4.0.0, and if the user is prompted to install this backdoor-carrying client, the private key is stolen and all digital assets are stolen. At the time of writing, at least 1,450 BTCs worth approximately $11.6 million had been stolen from phishing attacks that forged Electrum upgrade alerts. Devi Security Labs hereby suggests that versions of Electrum below 3.3.4 are vulnerable to such phishing attacks, and users using Electrum Wallet are requested to update to the latest version of Electrum3.3.8 via the official website (electrum.org), which has not yet been officially released v4.0.0, and do not use the link in the prompt message to avoid asset losses.

Tor, a privacy protection tool, announced that it would have to lay off 13 employees as a result of the new crown pneumonia, and that its core team would continue to develop Tor browsers and Tor software ecosystems. In the after-crisis, the need for privacy and secure access to information will become even more urgent, the Tor project said, "and the difficult steps we are taking today will ensure that the Tor project continues." Tor will continue to provide privacy, security and anti-censorship services to all. Isabela Bagueros, executive director of the Tor project, said that despite the layoffs, the current team would be able to continue running its servers and software, including tor anonymous web and Tor browser suites.

Click to get the Electrum Personal Server source code and the Electrum Wallet source code.

In this demo, Electrum developer Chris Belcher shows how to set up and use an Electrum personal server.

Bitcoin Wallet Electrum has released a beta version of Electrum 4.0, which supports the Lightning Network.

As mentioned earlier, because electrum light wallets are different from Bitcoin light wallets such as MultiBit or Breadwallet, they cannot communicate directly with bitcoin full nodes and can only communicate with electrum.

Lesson 1: Third-party Electrum servers can link your two transactions together. This can be avoided by running your own Electrum server, supported by your own full node.

Shunto touch melon, open the github of the electrum, we find the following code in the electrum/electrum/ecc.py.

You'll be asked twice about your wallet's password and a line of commands that start with "Generated seed phrase." Write down those mn notes and choose a security password that you can keep in mind. When these installations are lost, both are important for recovering funds, so take them seriously.

Corda vs Hyperledger vs Quorum vs Ethereum vs Bitcoin (centre)

Note: Electrum-XZC is derived from Electrum and uses different seed phrase criteria, so it cannot be imported.

Electrum is free software used by many cryptocurrencies websites, including merchants and exchanges, to store bitcoins. Anyone can run an Electrum server, and the software supports hardware wallets such as Trezor, Ledger, and Keepkey. Enhanced features include multi-signal and the ability to sign transactions using cold storage devices that are not connected to the network.