Hardware wallets are not permanently connected to the network. As a rule, these are compact devices the size of a flash drive with an impressive security system against hacking. Trezor is an open-source hardware wallet for storing more than 600 cryptocurrencies, the development of which began in 2012 by SatoshiLab, and one of the most popular solutions on the market.

A hardware wallet for cryptocurrencies is used for "cold" storage of digital assets on a secure physical device, that is, without constant access to the Internet. All the user's private keys are stored remotely, in security modules, and are not moved to any servers or the network at all. To date, one of the leaders in the hardware wallet market is Ledger.

Trust Wallet is a digital asset management application and a decentralized multicurrency repository from the Binance exchange. Initially, it specialized in Ethereum assets, but at the end of 2018, the team announced support for bitcoin. Now it is one of the world’s most popular and downloadable multi-currency wallets.

Metamask is a crypto wallet that allows you to receive, store, and send cryptocurrency assets. The Metamask wallet exists as an extension for the Google Chrome family of browsers and a smartphone application. With it, you can make transfers directly from the browser without logging into your main wallet.

The term "airdrop" means the free distribution of tokens. Sometimes they go to the owners of certain coins for their storage in crypto shelves, but more often the distribution of currency occurs as a reward for subscriptions to blockchain project accounts in social networks, retweets, and other simple actions. Users who want to make a profit are only required to spend a little time.

Successful trading depends on the user's ability to predict the rise or fall of quotes. To do this, different methods of market analysis are used. The first thing that is necessary to build an effective strategy is to read the charts of cryptocurrencies correctly, that is, to see signs of a continuation or reversal of the trend. This skill is called basic because with its help you can quickly analyze the situation in the market.

Blockchain technology has brought not just new ways of dealing with digital money and protecting your funds, but also new ways this technology can be hacked, the assets stolen and the security compromised. Even the security of blockchain networks that are supposed to be completely protected from any scam or fraud might get violated by the third-party invader. In the case of a dusting attack, not everything is that straightforward and a dusting attack may not be called a hack in the normal understanding. But before getting to this part, let’s clarify what’s a dusting attack.

Arbitrum is a second-level solution for the Ethereum network, which is used in smart contracts for better functioning. When using Arbitrum in smart contracts, the transaction processing speed increases, opportunities for scaling appear, and commissions within the network decrease. At the same time, additional functions, such as privacy, appear.

In the last few years, the crypto and blockchain industries experienced a real boom, and the number of users and transactions has also grown significantly. While no one can deny the revolutionary nature of the technology, it started to face issues with scalability — the capacity of the system to grow with the demand increase. This article elaborates on the ways the blockchain scalability problem is being solved.

In creating blockchain technology, the developers counted on the privacy and anonymity of digital money. This goal was achieved by introducing the principle of a peer-to-peer system - each user is equal, and there is no management system and money control body like banks. Now cryptocurrencies, as a technology, face the next task — to achieve a high speed of operations, comparable to Visa and MasterCard. The problem of scalability remains one of the main obstacles to the mass implementation of blockchain technology. An increasing number of blockchain project teams are in search of solutions that could improve the performance of their network.

Today, absolutely all cryptocurrencies that are built on the blockchain face one serious problem — which is scalability. In the centralized payment world, companies like Visa have accustomed us to fast, instant transactions. And until the cryptocurrency community solves this issue, we actually cannot move on. DAG is one of the technologies that is being explored as a possible solution.

Since the first blockchain network was launched, the mining concept was introduced. It may seem like not such a necessary knowledge when you just get to know about the cryptocurrency, but it might really benefit you financially, as it’s related to the way cryptocurrencies are acquired. There are some basic principles to be explained that will shed some light on how does crypto mining work.