All About Lightning Electrum
By default, electrum wallets are randomly connected to a set of Electrum servers. From a privacy perspective, this is not a good thing because it discloses your wallet address and balance to unknown third parties. And unfortunately, many public Electrum servers are run by individuals or groups of blockchain analytics companies or worse. Therefore, if you are using an Electrum wallet, it is generally recommended that you run your own Electrum server and then connect the wallet to that server.
11 Bitcoin wallet Electrum was hacked and at least 1450 BTCs were stolen.
With the success of BCH forking, more and more new virtual currencies have been created through IFOs: BTG (Bitcoin Gold), BCD (Bitcoin Diamond), SBTC (Super Bitcoin), LBTC (Lightning Bitcoin), BTP (Bitcoin Platinum), BCK (Bitcoin King), BTG (Bitcoin God)
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.
Bitcoin Wallet Electrum has released a 4.0 beta version with new updates that support Lightning Networks and more.
Why did Mr. Tsung-tung present SPV in the Bitcoin White Paper? What is SPV (Simple Payment Verification)?
Electrum developers are now warning about many other projects that try to clone popular wallets after the december announcement of a phishing attack. On January 10th they warned on Twitter that they were carrying out a sustained phishing attack on Electrum users, with rogue servers demanding that they install Bitcoin to steal malware. We released version 3.3.2, which mitigates attacks.
It was later confirmed by Electrum that the attack included creating a fake version of the wallet and tricking users into providing password information.