Tor nodes, also known as Onion Routers, are all delivered over a circuit of nodes. Note that the Tor line is only the path that covers the network, not the physical network. Each line consists of 3 nodes, and the request side first establishes the line with the 3 nodes and exchanges the route key with each node (Circuit Key)
Anonymous networks need to address the inefficiencies that exist in Tor today. Alternative protocol architectures and route selection protocols such as Tor-over-QUIC, DTLS, and Walking are being studied in academia.
The Electrum team has announced the attack in an official tweet, saying that "this is an ongoing phishing attack on Electrum users" and reminding them to check the authenticity of the client's source before logging in. The team published its official website, and the Electrum clients downloaded elsewhere may be problematic.
In this demo, Electrum developer Chris Belcher shows how to set up and use electrum personal servers.
The Litecoin Foundation is migrating from electrum-LTC wallets to BitGo wallets.
According to Reddit user u/normal_rc, electrum's wallet was hacked and nearly 250 bitcoins (243.6 BTCs, nearly $1 million) were maliciously stolen, according to coinelegraph. Electrum then confirmed that the attack included creating a fake version of the wallet to trick users into providing password information. Electrum responded on Twitter that "this is a persistent phishing attack on Electrum users" and warned users not to download Electrum from any source other than the official website.
Vulnerabilities were found in Electrum and Electrum-LTC. It has been fixed in Electrum-LTC 188.8.131.52. If you are running an earlier version, update your software.
The electrum and Electrum-LTC versions below 3.3.3 are vulnerable to phishing attacks in which a malicious server displays a message asking the user to download the fake Electrum. To prevent user exposure, versions older than 3.3 can no longer connect to public servers and must be upgraded. Do not download software updates from sources other than electrum.org and electrum-ltc.org.
Bitcoin Wallet Electrum releases Selectrum 4.0 beta support for the Lightning Network.
On the other hand, devices running the Windows 10 Update Assistant on Windows 10 version 1903 are also vulnerable if the update tool is installed manually.