The bitcoin wallet electrum allows any website to steal your bitcoins. I was.

Lesson 1: Third-party Electrum servers can link your two transactions together. This can be avoided by running your own Electrum server, supported by your own full node.

Enter your most recently copied seed key. (If you miss the keys, electrum will not let you to create your address and hence you won't be able to access your Litecoin.)

Electrum users are reminded of the Update Tip, which indicates that the new version of Electrum is likely to be fake, and if installed, transfer Bitcoin out in another security environment in a timely manner.

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.

Bitcoin nodes are divided into several functions: full-featured nodes, base full-nodes, and SPV nodes.

According to Bleeping Computer, the Bitcoin wallet app Electrom was on GitHub on May 9th, accusing a phishing product called Electrum Pro of stealing a user's seed key and registering a domain name called electrum without Electrum's permission. The Electrum team noted that there was a piece of code indicating that the counterfeit product might have taken the user's seed key and uploaded it to the electrum. Affected users should transfer funds from Bitcoin URLs managed by Eletrum Pro.

In December 2018, Slow Fog first discovered and alerted an attacker to a messaging flaw using the Electrum wallet client to force an "update prompt" to pop up when a user transfers money

Wallet service Electrum plans to support Bitcoin Lightning online trading technology by the end of July.

Bitcoin Wallet client Electrum may add support for the Lightning network.