Users of Bitcoin wallet Electrum are facing a phishing attack, according to the Devi Security Lab. Hackers broadcast messages to the Electrum client through a malicious server, prompting the user to update to v4.0.0, and if the user follows the prompt 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 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.
According to Reddit user u/normal_rc, electrum's wallet was hacked and nearly 250 bitcoins (243.6 BTCs, nearly $1 million) were maliciously stolen, according to coinelegraph. Electrum then confirmed that the attack included creating a fake version of the wallet to trick users into providing password information. Electrum responded on Twitter that "this is a persistent phishing attack on Electrum users" and warned users not to download Electrum from any source other than the official website.
Just get KeyPair Generator and you can create KeyPair as a key pair to get the public and private keys.
In a recent announcement on Twitter, Electrum advised users to disable the automatic connection option and manually select a server, while the company is developing a more powerful Electrum.
In recent days, hackers or hacker groups have stolen more than 200 bitcoins worth about $750,000 by attacking the infrastructure of electrum Bitcoin wallets. The attacker is targeting Electrum.
A public key, a private key.
In response to an earlier April 9 news that Bitcoin Wallet Electrum had been attacked by the botnet DoS, Devi Security Lab analysis said hackers used botnets of more than 140,000 computers to attack Electrom's nodes and simultaneously deploy 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. Millions of dollars of digital currency have been stolen, according to Electrum officials.
According to the dimensionality reduction security laboratory (johnwick.io), hackers launched a denial of service (DoS) attack on the well-known wallet Electrum server. The hackers used a botnet of more than 140,000 computers to attack Electrum nodes and deployed malicious nodes at the same time . When users connect to these malicious nodes and use the old version of Electrum to send transactions
iOS Wallet Electron (not Electrum!) QT (using the new code base)
If you store your bitcoins locally, you will usually use wallet software, which is software that tracks all coins, manages all the details of keys, and makes things easier through a good user interface. If you want to send $4.25 in bitcoins to your local coffee shop, the wallet software will give you some easy ways. Wallet software is especially useful because you usually want to use a bunch of different addresses with different keys. You may remember that it is easy to create a new public/private key pair that you can use to improve your anonymity or privacy. Wallet software gives you a simple interface to tell you how much money is in your wallet. When you want to use Bitcoin, it handles the details of which key to use and how to generate a new address, and so on.
Google has canceled 49 cryptocurrencies pocket browser extensions after security researchers discovered they had stolen non-public keys. These Chrome extensions are aimed at customers with encrypted wallets, similar to Ledger, Trezor, Jaxx, Electrum, Myetherwallet, Metamask, Exodus, and Keepkey.
Note: Electrum-XZC is derived from Electrum and uses different seed phrase criteria, so it cannot be imported.
Asymmetric encryption is like a magic box with a key (private key) in hand that can be locked but cannot be unlocked. If you want to unlock, you can only use another key (public key). It's counterintuitive, so it's called asymmetric. (see figure below)
Even if your application can provide you with a private key (or seed), you should verify that public key addresses can be derived and accessed from them. For example, some Bitcoin wallets allow users to import their private key or seed to view the address and the corresponding assets. To minimize the risk of key and seed leaks, you can do this on unconnected computers (disconnected from the Internet)
But if you've never sent a private key to anyone, how do you use it to authenticate a transaction? The answer is related to the mathematical relationship between the private and public keys: digital signatures.
As mentioned earlier, because electrum light wallets are different from Bitcoin light wallets such as MultiBit or Breadwallet, they cannot communicate directly with bitcoin full nodes and can only communicate with electrum.
On December 27, Reddit user u/normal_rc reported that Electrum's wallet had been hacked and that nearly 250 bitcoins (243.6 BTCs, nearly $1 million) had been maliciously stolen, coinelegraph reported. Electrum then confirmed that the attack included creating a fake version of the wallet to trick users into providing password information. Electrum responded on Twitter that "this is a persistent phishing attack on Electrum users" and warned users not to download Electrum from any source other than the official website.
If you do not want to create a new cold wallet, you can choose to set up an account multi-signature, like the whale exchange introduced, the exchange can use multi-sign can ensure the centralization, users themselves use multi-sign can make your account more secure, even if your private key leakage of your assets is also safe, specifically I have not understood, do not say.
You need to create the private key first.
When an Electrum wallet queries a third-party Electrum server, the server can link two transactions together and know which address is a zero address.
Step: Click "Create Identity" to create a new wallet. If you have registered your wallet and have a wallet private key, you can select Recover Identity to import your existing wallet and continue to use or recover your assets.
electrum do you want to create a new seed use public private key
The public key can be generated by the private key, but you cannot create the private key from the public key (so public key generation is a one-way feature)
Another example is hierarchical deterministic wallets, which are designed to manage multiple wallet private keys, and the rough process is to create a private key, and then use that private key to generate a child private key, the primary public key can generate a child public key, and independent of the private key and the public key. You only need to back up a primary private key, you can view the lower level, you can also set different permissions, such as transactions or view transactions, or can, save when a private key will save a lot of trouble. But the downside is also obvious, because there is a fixed association between the primary and private keys, which naturally sacrifices security performance.
The BIP32 protocol is the key generation protocol used by Bitcoin. The user can generate an extended private key from a random seed, and then use this extended private key to generate the N multi-private key, the public key pair, and the N multi-child extended private key. Defined layered determinic wallets (or "HD wallets")
Wallet, Coldlar, Electrum, Huobi.
Electrum third party.
Dash Electrum 3.2.3.1 was released, renamed Dash-Electrum, adding the option to use Tor Proxy at startup, according to Dash Coin. DASH is now trading at $159, down 3.26 percent.