Crypto Library Archives: July 2025 Blockchain and Crypto Updates

When you look at blockchain, a decentralized digital ledger that records transactions across many computers so that any involved record cannot be altered retroactively. Also known as distributed ledger technology, it's the backbone of everything from crypto payments to smart contracts. July 2025 wasn’t about hype—it was about fixing what broke. We saw real users lose funds because they trusted sketchy wallet apps that claimed to be "non-custodial" but still held recovery keys. That’s why our guides this month focused on how to verify if your wallet actually gives you control—or if it’s just a fancy front end for someone else’s server.

cryptocurrency, a digital or virtual currency secured by cryptography, often operating independently of a central bank. Also known as digital asset, it’s not just Bitcoin and Ethereum anymore. July brought a wave of new tokens tied to real-world use cases: one token paid for solar panel installations in rural Mexico, another tracked carbon credits from verified reforestation projects. These weren’t memes. They were built on chains that actually processed transactions under $0.01, something most big networks still can’t do reliably. Meanwhile, exchanges like Kraken and Binance rolled out new withdrawal limits after a series of phishing attacks targeted users with fake 2FA apps. We broke down exactly which platforms started requiring device binding—and why that matters if you’re holding more than a few hundred bucks.

crypto wallet, a digital tool that lets you store, send, and receive cryptocurrency using public and private keys. Also known as digital wallet, it’s the only thing standing between your money and a hacker. This month, we tested 12 wallets that claimed to be "the most secure." Only three passed the basic test: could you restore your funds using a 12-word phrase on a brand-new device, without any internet connection? Two failed because they used cloud backups. One locked you out if your phone got too hot. We published the full list—no sponsored picks, just what worked under real conditions.

airdrop, a free distribution of cryptocurrency tokens to wallet addresses, often used to promote new projects or reward early users. Also known as token giveaway, it’s not free money if you don’t know how to claim it safely. July had over 40 active airdrops, but 70% of them asked for your private key or required you to connect your wallet to a site with no SSL certificate. We flagged the real ones—like the one from a decentralized identity project that only needed a verified email and a signature from your existing wallet. That one paid out $120 to users who followed the steps correctly. The rest? Scams wrapped in whitepapers.

exchange, a platform where users can buy, sell, or trade cryptocurrencies. Also known as crypto trading platform, it’s where most people enter—and sometimes lose—crypto. We tracked which exchanges finally added withdrawal delays for new accounts after a surge in stolen funds. Some now require 72 hours before you can move coins out, even if you’ve used the site for years. Others started showing real-time liquidity maps so you could see if a coin was being dumped by whales. We didn’t rank them. We showed you what changed—and why it could save your portfolio.

What you’ll find below isn’t a list of headlines. It’s a collection of what actually happened in July 2025: the wallet fixes, the airdrop traps, the exchange updates that changed how you protect your money. No theory. No fluff. Just the stuff you need to know before you click, send, or swap again.