Users of Bitcoin wallet Electrum are currently facing phishing attacks, according to the Devi Security Lab. 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 (stolen by one user, antimalware firm Malwarebytes and Electrum) had been stolen in phishing attacks that faked Electrum upgrade tips, with a total value of approximately $11.6 million. It is worth mentioning that electrums below version 3.3.4 are vulnerable to such phishing attacks, and users of Electrum wallets 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, and do not use the links in the prompts to avoid asset losses.