The cryptocurrencies wallet Electrum was hacked and lost 250 bitcoins.
In addition, Electrum Wallet generates recovery seeds for backup and does not require any personal information after registration, which is also layered certainty.
Electrum is an unmanaged wallet that stores only the user and not any private keys. It is compatible with Windows, Mac OS X, Linux operating systems, and Android mobile devices.
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)
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 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.
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.
Real-world example: Parity Multisig Wallet (Second Hack)
"The Egyptian embassy in London requested the British foreign affairs ministry.
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.