Blockchain

Blockchain / Recently Commented

Bitcoin: The Andromeda Strain of Computer Science Research

Everyone knows about Bitcoin. Opinions are divided: it's either a huge bubble, best suited for buying tulip bulbs, or, as one Twitter rather hyperbolically expressed it, "the most important application of cryptography in human history". I personally am in the bubble camp, but I think there's another lesson here, on the difference between science and engineering. Bitcoin and the blockchain are interesting ideas that escaped the laboratory without proper engineering - and it shows. Let's start with the upside. more

Why Is It So Hard to Run a Bitcoin Exchange?

One of the chronic features of the Bitcoin landscape is that Bitcoin exchanges screw up and fail, starting with Mt. Gox. There's nothing conceptually very hard about running an exchange, so what's the problem? The first problem is that Bitcoin and other blockchains are by design completely unforgiving. If there is a bug in your software which lets people steal coins, too bad, nothing to be done. more

The .BEST New gTLD: Second Interview

This is a one hour podcast giving all details about what the .BEST social network is going to be and how users will be able to generate an income from it... Cyril Fremont gives lots of details on how his social network, focusing on reviews, is going to be different from Google Reviews, Facebook, Yelp and TripAdvisors. If one would be tempted to think that ... well, "that's just going to be another social network", then, I strongly suggest to listen carefully the part of the interview on the decentralization of this network. more

Blockchain's Two-Flavored Appeal

A recent story in Medium describes yet again quite well why blockchains don't solve any real problems: Blockchain is not only crappy technology but a bad vision for the future. So what is their irresistible appeal? Bitcoins remind me of a story from the late chair of the Princeton University astronomy department. In 1950 Immanuel Velikovsky published Worlds in Collision, a controversial best-selling book that claimed that 3500 years ago Venus and Mars swooped near the earth... more

Is Blockchain Causing More Cybersecurity Attacks in the Financial Industry?

There's a lot of misunderstanding about blockchain. A recent study by HSBC, for example, found that 59 percent of customers around the world had never heard of it. Yet, while that alone is quite telling, it's probably more alarming to consider the fact that very same poll revealed that 80 percent of people who had hard of blockchain did not understand what it is. This level of confusion isn't confined to the general population either. more

Hackers Hijack DNS Server for Cyrptocurrency Wallet BlackWallet, Over $400K Stolen From Users

Unknown hackers (or hacker) have hijacked the DNS server for BlackWallet.co, a web-based wallet application for the Stellar Lumen cryptocurrency (XLM). more

Breaking the Mold: Reclassifying Over a Billion .XYZ Domains for Alternative Uses

Three years ago, my team and I launched .xyz with the mission of bringing competition, choice, and innovation on the internet. .xyz was probably the only domain extension that had no built-in meaning, included very few domains priced at a premium, and relied on low margins and high volume. We brought with it the message that .xyz was for every website, everywhere. And instead of targeting one vertical, we connected with the next generation of internet users... more

Blockchain of Things Goes Global at ITU-T Dubai Meeting

Today, one of the world's largest Internet companies, Alibaba, together with a compelling array of other providers, vendors, and government bodies for the first time called for a visionary multilateral technical and operational "framework for a Blockchain of Things." The exceptionally thorough and comprehensive 23-page document, SG20-C.008, was submitted into the upcoming ITU-T SG20 Internet of Things (IoT) Study Group meeting at Dubai, 13j23 March -- the first group gathering in the organization's new 2017-2020 study period. more

Are Blockchains the Most Expensive Database Ever Invented?

One of the oft-made claims about Bitcoin and its blockchain transaction ledger is that they make transactions really cheap, so you can pay someone anywhere in the world for free, or close to it. But when you look closer, is that really true? Not by a long shot. Bitcoin transactions are stored in a large shared database called the blockchain. more

Inside Bitcoins

Electronic money is not a new idea. The Electronic Fund Transfer Act was passed by the U.S. Congress and signed by President Jimmy Carter 35 years ago (1978). Other forms of electronic money include payment processors, direct deposit, and digital currencies such as Bitcoin. What distinguishes Bitcoin from other electronic money is that it is a cryptocurrency... Will Bitcoin replace the dollar, euro, yen, franc, kroner, et al? Possible, but most authorities seem to be saying it is doubtful. more

Liberty Reserve Now, Bitcoin Next?

The papers have been abuzz with the shutdown of Liberty Reserve, an online payments system, due to accusations of large scale money laundering via anonymous transactions. Many people have noted similarities between LR and Bitcoin and wonder whether Bitcoin is next. I doubt it, because with Bitcoin, nothing is anonymous. more

Internet Outfits Including Facebook, Telegram and Signal Are Rolling Out New Cryptocurrencies

Some of the leading internet messaging companies including Facebook, Telegram and Signal are moving ahead with plans to provide mainstream consumers digital coins. more

Cryptominers Infected 10x More Organizations Than Ransomware in 2018

A new security report reveals cryptominers infected ten times more organizations than ransomware in 2018, but only one in five IT security professionals were aware their company's networks had been infected by mining malware. more

DNS Inventor Impressed With Innovative Effort Behind .LUXE TLD to Integrate DNS With Blockchain

The company running the new .LUXE top-level domain (TLD) recently issued an update on its progress with the innovative effort to tie the TLD with blockchain. more

Where’s the Blockchain Killer App? Maybe It’s Buried Underneath All the Hype!

In recent times, I've been struggling to determine where blockchain has demonstrated its immensely promised value, delivered true market or stakeholder value, or disrupted an existing ecosystem. And thus far, what I keep coming up with is that "blockchain is truly a solution searching for a problem." Most of all, many of its enthusiasts and proponents are generally conceptual thinkers and/or snake oil salespersons who have little to no experience delivering secure, integrated, complex systems. more