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"Electrum DDoS botnet infects more than 152,000 hosts" - Jett.

As of press time, phishing attacks that forged Electrum upgrade notifications have stolen at least 1,450 BTC (the number stolen is officially counted by a user, anti-malware companies Malwarebytes and Electrum), with a total value of approximately $11.6 million. It is worth mentioning that Electrum versions lower than 3.3.4 are vulnerable to such phishing attacks. Users who use Electrum wallets should update to the latest version Electrum 3.3.8 through the official website (electrum.org). At present, v4.0.0 has not been officially released. Version, please do not use the link in the prompt message to update, so as to avoid loss of assets

The problem was not fixed. So he had to contact Electrum to highlight the urgency of the issue, and Electrum released Emergency Response Version 3.0.4 a few hours later.

Attackers reportedly created their own Electrum servers, which hosted the attacked version of Electrum in order to implement the attack. When the user will be vulnerable.

In contrast, another wallet, Stratis Electrum, is a simplified trading client.

Electrum - Lightweight Bitcoin client.

In August-September, Bitcoin wallet Electrum was hacked twice, and according to multiple sources, at least 1,450 BTCs worth $11.6 million were stolen from phishing attacks that faked Electrum upgrade tips.

The Bitcoin Private (BTCP) project, a fork merge of Bitcoin and ZClassic (ZCL), aims to add to Bitcoin the privacy and security features of ZClassic's zk-SNARKs-based zero-knowledge proof technology. Among them, ZClassic is also forked from ZCash, supported by miners, similar to Bit Cash (BCH)

Electrum Wallet is one of the most popular Bitcoin wallets and has been around for several years. However, Electrum wallet users often rely on electrum servers, which presents some security and privacy trade-offs. If you use an Electrum personal server, Electrum wallet users can connect locally to their own private servers, enjoying the convenience of Electrum without any trade-offs.

However, after electrum officials said in early 19th that some security mechanisms should be put in place to prevent this "update phishing", many users of Electrum are still in the old version.

Firewall-friendly: Electrum does not require a specific port in the firewall. It simply polls the server for updates.