Security (39)

The importance and responsibility of owning your cryptocurrency shouldn't be underestimated. It's like being your own bank. And holding your keys isn't just a technicality — it's a fundamental aspect of true asset control.

When we think of self-custody in the context of crypto, we often think of wallets, where we're fully responsible for managing, securing and maintaining our digital assets without third-party platforms

When it comes to safely storing your crypto, it’s widely recommended to withdraw your coins from an exchange and store them in a personal wallet, as the crypto industry has a saying — not your keys, not your coins. When it comes to choosing the type of wallet you wish to store your crypto in, there's a wide selection, such as hot wallets or cold storage — which are also known as offline storage wallets.

SIM swap attacks are a growing threat in the cryptocurrency world, where attackers hijack phone numbers to gain unauthorized access to users' crypto accounts. What are SIM swap attacks exactly, and how can you prevent them? Read on to find out.

Artificial Intelligence (AI) surrounds us today, whether we realize it or not. It takes the form of Large Language Models such as ChatGPT, your smartphone’s facial recognition function, website chatbo

You should be hearing more and more about Proof of Reserves but can you explain the difference between a token’s Proof of Reserves and an exchange’s Proof of Reserves? Here’s our quick recap, in simpl

Plugging more people into the global financial system requires developing new tools to fit their needs. From self-custody to staking, Proof of Reserves, and more, crypto brings new solutions to the ta

Proof of Reserves (PoR) is a relatively new concept in the financial space, and its potential as an auditing method is still being explored. PoRs are cryptographic proofs that the amount a custodian o

What would happen if technology could transform the public web into a decentralized platform? The Internet Computer (ICP) provides a glimpse at what might be possible, being a cloudless environment that offers another way to deploy decentralized applications (DApps).

Censorship resistance is a concept that is becoming increasingly important in today's world, where the internet and other communication technologies are essential for social, political and economic in

A coin mixer, also known as a Bitcoin mixer or a cryptocurrency tumbler, is a tool that allows users to mix their cryptocurrency funds with those of other users to obscure the source and destination o

What makes blockchain networks secure and decentralized? Blockchain nodes are the answer. The technology validates transactions, stores the blockchain, and keeps the network running. Whether you’re new to blockchain or looking to deepen your understanding, grasping what a node does and why it’s vital is the first step to understanding how decentralized networks operate.

You might have heard of Proof of Reserves (PoR) but did you know there are actually different types of PoR, each giving more weight to different aspects? In this article we'll cover what these are, in

One of the most important parts of the Bitcoin machine is Proof of Work (PoW) — a consensus mechanism that gives the decentralized ledger robust security.The concept of PoW first emerged with the arrival of Hashcash in 1993. Hashcash's creators, Moni Naor and Cynthia Dwork, devised a form of PoW to stop denial-of-service attacks and other abuses like spam. Doing so required some work from the person requesting the service, usually involving a computer’s processing time.

What are Merkle trees and how do they enable Proof of Reserves? You’ll often hear that some kinds of Proof of Reserves are based on “Merkle trees”. But what are they and how do they even work? Here’s

Put simply, a nonce in crypto is a number that’s used once in a very specific way within the blockchain. Think of it as a unique one-time code that plays a key role in adding new data to the blockchain.In most blockchain networks, including Bitcoin, the nonce helps solve the complex puzzle that allows new blocks to be created. But here’s the thing — you don’t need to be a math whiz or a tech expert to grasp the basics. The nonce is part of how blockchain stays secure, making sure that all the transactions are valid and the network operates smoothly.

As blockchain technology becomes more widespread, the security of digital assets is increasingly critical. Towards this end, the multisignature (multisig) mechanism is a security measure that's gaining attention and adoption among users. Through this system, a wallet can be controlled by multiple users, requiring several signatures to complete a transaction. This can be compared to a safe that needs multiple keys to open — only when all keyholders cooperate can the safe be accessed.

While blockchain technology is generally deemed safer than most traditional systems, it still has its risks. One of the biggest threats to the integrity of blockchain is the 51% attack, also known as

Publishing transparent and frequent Proofs of Reserves (PoR) is crucial for centralized exchanges who want to prove their solvency. OKX uses [Merkle tree verification](/learn/merkle-trees) to prove th

There's no such thing as too much security when the aim is to keep your crypto assets safe. One of the most effective tools towards this aim is two-factor authentication (2FA). 2FA greatly reduces the risk of unauthorized access to your by adding an extra layer of protection. It's an essential feature for crypto beginners to understand as they navigate the technical world of trading, and one more experienced traders would be wise to revisit to help keep their assets secure.

Blockchain technology promises to revolutionize the world of online payments, in fact, many feel that it already has. Unlike traditional banking, it can deliver international payments almost instantly

It's tough to overestimate how disruptive cryptoassets have been to the traditional financial system. The industry provides a compelling alternative, as it aims to create a fairer and more equitable system for all. At the same time, the ripples of this disruption have reached security and ownership, guided by crypto's core concept of decentralization.

As the world of cryptocurrencies continues to evolve, understanding the different types of wallets available is crucial for secure and convenient management of digital assets. TL;DR Explore the concept of Web3 wallets

The conversation around crypto regulation is louder than ever in 2023, but the global picture is still evolving. Important steps forward have been made, including Europe’s [Markets in Cryptoassets (Mi