25% arithmetic does not perform SW soft forks. But the software is a soft fork, so 25% of the calculation force will not dig a chain alone, but will continue to accept 75% of the calculation force dug out of the block. But 75% of the computing power will not accept 25% of the blocks dug out, 25% of the blocks dug out will always be isolated, become isolated blocks. This 25% calculation is that it has been dug in white and isolated.

Date: November 25, 2019 to April 17, 2020.

The Electrum development team also warned them that they had nothing to do with a project called Electrum Dark: they used our name without our permission. Be careful with the altcoin version of Electrum, as they are sometimes used as vectors to install malware against your real Bitcoin wallet.

When an Electrum wallet queries a third-party Electrum server, the server can link two transactions together and know which address is a zero address.

Electrum users are reminded of the Update Tip, which indicates that the new version of Electrum is likely to be fake, and if installed, transfer Bitcoin out in another security environment in a timely manner.

In recent days, hackers or hacker groups have stolen more than 200 bitcoins worth about $750,000 by attacking the infrastructure of electrum Bitcoin wallets. The attacker is targeting Electrum.

If you pay online using cryptocurrencies, Electrum is ideal for keeping a small amount of currency ready for use.

Electrum is a well-known light wallet for Bitcoin that adds new features such as server authentication using SSL to prevent MITM attacks. So unlike other Bitcoin light wallets, Electrum cannot communicate directly with different versions of Bitcoin full nodes, and each startup connects to electrumserver to communicate, and electrum.

If the response is missing sec-WebSocket-Accept header, or sec-WebSocket-head Accepter's value is not a string (as a string, uncoded base64) with string 258EAFA5-E914-47DA-95CA-C5AB0DC85B11" concatenated (ignoring any leading and trailing spaces). If base64 encodes the SHA-1 value, the client must close the WebSocket connection.

Electrum wallets have been hacked in recent days and nearly 250 bitcoins have been stolen, according to blockchain security team Devi Security Labs. This attack, confirmed by Electrum, involves creating a fake version of the wallet to trick users into providing password information. Electrum responded on Twitter that "this is an ongoing phishing attack on Electrum users and advised users to download wallet apps from the official website." Mars Finance reminds users not to install electrum wallets from unknown sources.