Since Bitcoin uses the UXO model, the coin is not stored in the user's account, but in the transaction itself, all transactions have output and unspent output, which is very effective for Bitcoin, but for NIST cryptocurrencies prototype implementation, it will become very embarrassing.
i see two output in electrum for a bitcoin transactions
Unused Transaction Output (UTXO) - In some blockchains, such as Bitcoin, transactions consume input, leaving some output unused. These unused outputs can be input to future transactions.
My current state is to continue to write it, constantly write some nonsense, like they said that the South Palace is far from hard output, in fact, I do not expect is still in the strong output, very good, continue to output, I would like a year later if I see their daily writing of those ridiculous things, after what kind of mentality.
Check for duplicate transactions with the same output in the trading pool.
You may have noticed an important difference between the MyMonero type and the Electrum seed type. MyMonero creates a viewing private key by hashing a random integer, while the Electrum type hash pays the private key. This means that the seeds of 13 and 25 words are not compatible - it is not possible to create an Electrum type account that matches the MyMonero type account (and vice versa) because viewing key pairs is always different.
UBTC Electrum supports transfer-to-contract UI interface (test chain)
The Electrum team has also been developing other features. Electrum Wallet users can view the full release notes here.
Dynamic . . . Electrum wallet attacked nearly 250 bitcoins were stolen.
Article Link : Digital Wallet Electrum Hacked, Loss of 250 Bitcoins (Copy Link)
One of electrum Bitcoin's most popular wallets first appeared around 2011.
Electrum-LTC is a simple but powerful Litecoin wallet. Like its predecessor, the Electrum-Bitcoin wallet, the open source wallet is available on GitHub and anyone can view or upgrade the code.
Electrum Bitcoin Wallet review.
The main reason for the Trezor vulnerability is that it does not have built-in multi-signature functionality, so its multi-signature implementation is to support Electrum extensions. This leads to an attack on Electrum, and Trezor is affected.
In addition, a researcher in the Department of Information and Communication Engineering at Autonomous University of Barcelona published an article entitled Double-Spending Prevention for Bitcoin Zero-Confirmation Transactions. In this paper, the author mentions a special transaction output method to suppress the motivation to initiate a double flower: if two different signatures are used to sign the same transaction output (double flower), the private key used to sign the transaction will be exposed.
Electrum LTC wallet.
UTXO (Unspent trade output) mode Bitcoin has no account and its transactions are based on UTXO (Unspend Transaction Output, unspent trade output). In the traditional account trading model of electronic transactions, there will be an intermediary (e.g. a bank) in the payer account to write down the payment amount, in the payer to add the payment amount. Bitcoin, on the other, has a shared ledger. For example, if A pays B2 Bitcoins, but A previously had three Bitcoins, the Bitcoin ledger generates two transactions, one for B and one for A, which is a zero transaction.
In a forum post on Bitcointalk, website administrator Theymos explained: "If at any time in the past you've logged in to Electrum without a wallet password and opened a web page, your wallet might have been stolen." Particularly paranoid people may want to send all bitcoins (BTCs) from their old Electrum wallets to the newly generated Electrum wallet. "
You can download electrum Bitcoin Wallet on the official website "electrum.org". Electrum is also available to users of Ledger Nano S, KeepKey, and TREZOR hardware wallets.
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.
UBTC Electrum Light Wallet v3.3.4 Latest Release (note attached)
According to the Low-dimensional Security Laboratory reported that a recent user submitted a coin-losing incident, claiming that the download using the Electrum wallet was phishing attack, the loss of more than 700 bitcoins, the stolen address has been added to the Low-dimensional AML system, we will continue to monitor and track the further flow of funds. It is reported that malicious websites (electrumsecure) fake Electrum website phishing attacks, to guide users to download and use the wallet, in order to steal the user's private key and other sensitive data. Devi Security Labs is here to remind users not to install unknown sources of Electrum wallets, to avoid asset losses.
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)
Bitcoin Wallet Electrum will support the Lightning network in the next release, and its Lightning nodes have been merged into electrum's main branch, according to Cointegraph. Electrum also confirmed that the wallet will be written in-house development Python.
Hackers launched a denial-of-service (DoS) attack on a well-known wallet Electrum server, according to The Devi Security Lab. Hackers used botnets of more than 140,000 computers to attack Electrum nodes and simultaneously deployed malicious nodes. When a user connects to these malicious nodes and sends a transaction using an older version of Electrum, the user is prompted to update the client carrying the backdoor. If the user installs the client as prompted, the private key is stolen and all digital assets are lost. Millions of dollars of digital currency have been stolen, according to Electrum officials. De-dimensional Security Labs recommends that users of electrum wallets be updated to the latest version of the client through the official website and never use the link in the prompt message.
Many wallets do not currently support custom fees, which can cost users a lot of fees. I strongly recommend waiting a while when there are more transactions in the memory pool, and then transfer your currency to an address where you can customize the fee. You can Google which wallets support custom fees, currently electrum and Bitcoin.
Cryptocurrencies Wallet Electrum has lost nearly 250 bitcoins (approximately $914,000) as a result of the new phishing attack. Electrum has confirmed the authenticity of the attack. An attacker could induce a user to provide password information by creating a fake wallet.