Complete qtum-electrum-new compatibility with legacy data formats.
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.
Up to 152,000 devices have been used to launch DDoS attacks against Electrum.
Leaving aside the merchant's rejection of any customer's TX disadvantage, Blockstream has the exception of RBF.
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.
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.
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.
In December 2018, Slow Fog first discovered and alerted an attacker to a messaging flaw using the Electrum wallet client, forcing an "update prompt" to pop up when a user transfers money, inducing the user to update and download the malware, which in turn commits a currency theft attack. Although electrum officials said in early 2019 that some security mechanisms would be in place to prevent this "update phishing", many users of Electrum are still in the old version (less than 3.3.4) and the old version is still under threat. However, we do not rule out a similar threat to the new version.
Electrum 0.18.8 is available for details at github.
August 8, 2019: The latest version of Electrum Litecoin Wallet 22.214.171.124 is released.