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)
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The latest version of UBTC Electrum Light Wallet V3.3.1 is available for download.
At the time of writing, at least 1,450 BTCs worth about $11.6 million had been stolen from phishing attacks that faked Electrum upgrade tips. DeViable 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 Electrum 3.3.8 via the official website (electrum.org), which has not yet been officially released, and do not use the link in the prompt to avoid asset losses.
Bitcoin Wallet providers like Trezor and Electrum.
Electrum hackers pre-empted a large number of "normal" electrum servers on the P2P network.
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No downtime: Electrum Litecoin is not bound to a specific server;
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The Electrum team has announced the attack in an official tweet, saying that "this is an ongoing phishing attack on Electrum users" and reminding users to check the authenticity of the client's source before logging in. The team published its official website, and electrum clients downloaded elsewhere may be problematic.
Ledgers have replaceable world state data stores. By default, this is the LevelDB key value storage database. Transaction logs do not need to be pluggable. It records only the before and after values of the ledger database used by the blockchain network.
However, after electrum officials said in early 19th that some security mechanisms should be put in place to prevent this "update phishing", many users of Electrum are still in the old version.
Taking into account the benefits of isolated witness, wallet service provider Mycelium has announced that it is conducting testing and making adjustments to the user interface to suit the execution of isolated witness. Mycelium emphasized in particular that the basic work they had done before carrying out the isolation testimony had been completed.
fn get_column(&self, i: u64) -> Result
Send the coin to another wallet for long-term bitcoin storage. There should be a full node behind the wallet, such as the Electrum node pointing to your own Electrum server.
Electrum is a popular software wallet that works by connecting to a dedicated server. These servers receive a hash of the Bitcoin address in the wallet and reply with transaction information. Electrum Wallet is fast and has few resources, but by default, it connects to these servers and can easily monitor users. In addition to Electrum, some other software uses public Electrum servers. By 2019, it is a faster and better alternative to BIP37.