All About Lightning Electrum
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 wallets are fast and have 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.
You can use Security Seeds to recover your wallet on any Electrum client, even on the Electrum Wallet online web program.
During the theft of electrum Bitcoin wallets, more than 70 percent of their networks were controlled by attackers.
The Electrum team has also been developing other features. Electrum Wallet users can view the full release notes here.
iOS Wallet Electron (not Electrum!) QT (using the new code base)