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A private key entrusted to several Bitcoin developers by Mr. Tsung-tung may be made public. The private key is used to activate the so-called alert system of the Bitcoin protocol, which is used to warn people running the software to keep money safe. Core removed the system from the new code in 2016, and now Core contributor Bryan Bishop plans to publish it. He is considering releasing the private key in early July, but it has not yet been finalized.

Electrum is a well-known light wallet for Bitcoin that adds new features such as server authentication using SSL to prevent MITM attacks. So unlike other Bitcoin light wallets, Electrum cannot communicate directly with different versions of Bitcoin full nodes, and each startup connects to electrumserver to communicate, and electrum.

It is reported that malicious websites (electrumsecure) fake Electrum website phishing attacks, to guide users to download and use the wallet, in order to steal the user's private key and other sensitive data. Users are reminded not to install electrum wallets from unknown sources at will to avoid asset losses.

You may have noticed an important difference between the MyMonero type and the Electrum seed type. MyMonero creates a viewing private key by hashing a random integer, while the Electrum type hash pays the private key. This means that the seeds of 13 and 25 words are not compatible - it is not possible to create an Electrum type account that matches the MyMonero type account (and vice versa) because viewing key pairs is always different.

A valid signature can be verified, i.e., Verify (pk, message, sign (sk, message) .

Password retrieving is not supported. Currently, Steemit does not support the user to retrieve the password, and if the password is lost, the corresponding coin page in the account cannot be retrieved.

Complete qtum-electrum-new compatibility with legacy data formats.

Today, electrum Wallet's official Twitter feed repeatedly alerted users to hacking attacks.

April 9 (Johnwick.io) reported that hackers had launched a denial-of-service (DoS) attack on the well-known wallet Electrum server. Hackers used a botnet of more than 140,000 computers to attack Electrum's nodes and simultaneously deployed malicious nodes. When a user connects to these malicious nodes and sends a transaction using an older version of Electrum, the user is prompted to update the Backdoor Client. If the user installs the client as prompted, the private key is stolen and all digital assets are lost.

Dynamic . . . Electrum wallet attacked nearly 250 bitcoins were stolen.

Here, by the way, we popularize hybrid encryption (symmetric encryption and asymmetric encryption). When encrypting, a password m is used to symmetry (symmetry) of clear text, and then the password m is encrypted (asymmetrmetry) with the private key. Decryption uses the public key to decrypt the password m (asymmetric) and then uses the password m decryption to obtain clear text (symmetry). The benefits of mixing make up for the short boards of different systems: asymmetric encryption such as RSA has limits on clear text length, while symmetric encryption such as DES is easy to crack. Nucyper also mentions hybrid encryption in the article. This may complicate the process, and for ease of understanding, we can still focus only on the asymmetrmetric encryption part.

The new version of the wallet will also include undersea switching, which allows BTC to pass from the Bitcoin blockchain to the payment channel network LN. For this novelty, Electrum is based on Boltz technology. Electrum will charge a commission for this service.