CVE-2018-19158

ColossusCoinXT through 1.0.5 a chain-based proof-of-stake cryptocurrency allows a remote denial of service, exploitable by an attacker who acquires even a small amount of stake/coins in the system. The attacker sends invalid headers/blocks, which are stored on the victim's disk...

Blockchain and Trust

In his 2008 white paper that first proposed bitcoin, the anonymous Satoshi Nakamoto concluded with: "We have proposed a system for electronic transactions without relying on trust." He was referring to blockchain, the system behind bitcoin cryptocurrency. The circumvention of trust is a great...

Amber Authenticate Protects Video Footage From Deepfakes and Tampering

Many of the body cameras worn by police are woefully vulnerable to hacking and manipulation. Amber Authenticate wants to fix that—with the blockchain...

There's No Good Reason to Trust Blockchain Technology

Opinion: Cryptocurrencies are useless. Blockchain solutions are frequently much worse than the systems they replace. Here's why...

Critical Zcash Bug Could Have Allowed 'Infinite Counterfeit' Cryptocurrency

The developers behind the privacy-minded Zcash cryptocurrency have recently discovered and patched a highly dangerous vulnerability in the most secretive way that could have allowed an attacker to coin an infinite number of Zcash ZEC. Yes, infinite… like a never-ending source of money. Launched i...

Major Zcash Vulnerability Fixed

Zcash just fixed a vulnerability that would have allowed "infinite counterfeit" Zcash. Like all the other blockchain vulnerabilities and updates, this demonstrates the ridiculousness of the notion that code can replace people, that trust can be encompassed in the protocols, or that human governan...

New Mac Malware Targets Cookies to Steal From Cryptocurrency Wallets

Mac users need to beware of a newly discovered piece of malware that steals their web browser cookies and credentials in an attempt to withdraw funds from their cryptocurrency exchange accounts. Dubbed CookieMiner due to its capability of stealing cookies-related to cryptocurrency exchanges, the...

[SECURITY] Fedora 28 Update: electrum-3.2.4-1.fc28

Electrum is an easy to use Bitcoin client. It protects you from losing coins in a backup mistake or computer failure, because your wallet can be recovered from a secret phrase that you can write on paper or learn by heart. There is no waiting time when you start the client, because it does not...

[SECURITY] Fedora 28 Update: electron-cash-3.3.4-1.fc28

Electron Cash is an easy to use Bitcoin Cash client. It protects you from l osing coins in a backup mistake or computer failure, because your wallet can be recovered from a secret phrase that you can write on paper or learn by heart. There is no waiting time when you start the client, because it...

Ethereum Classic (ETC) Hit by Double-Spend Attack Worth $1.1 Million

Popular cryptocurrency exchange Coinbase has suspended all transactions of Ethereum Classic ETC—the original unforked version of the Ethereum network—on their trading platforms, other products and services after detecting a potential attack on the cryptocurrency network that let someone spend the...

The Advantages of a More Secure and Safer Blockchain

By Waqas Blockchain technology has many uses and advantages over other types of ledger-based technology. One aspect of blockchain technology that is especially valuable today is the ability to securely and safely transmit data to and from two or more parties. This is particularly important when t...

[SECURITY] Fedora 29 Update: electron-cash-3.3.4-1.fc29

Electron Cash is an easy to use Bitcoin Cash client. It protects you from l osing coins in a backup mistake or computer failure, because your wallet can be recovered from a secret phrase that you can write on paper or learn by heart. There is no waiting time when you start the client, because it...

Using the blockchain to create secure backups

“Oh no! I’ve got a ransomware notice on my workstation. How did this happen?” “Let’s figure that out later. First, apply the backup from a few minutes ago, so we can continue to work.” Now that wasn't so painful, was it? Having a rollback solution or a recent backup could make this ideal post...

This Company Wants to Use the Blockchain to Stop Phishing

MetaCert has classified 10 billion URLs as either safe, a suspected source of phishes, or unknown...

NEO Blockchain Node Client NEO-CLI Has RPC Interface Exposure Vulnerability

NEO is a non-profit community-based blockchain project. It is a distributed network that uses blockchain technology and digital identity to digitize assets, and smart contracts to automate the management of digital assets to achieve a "smart economy". An RPC interface exposure vulnerability exist...

India's Startup Story - The Future of India's Digital Economy

India's goal of reaching a $1 trillion digital economy by 20221 is said to be fuelled, in part, by the spurt in the growth of startups across the country. The number of Internet users in India is growing at an enormous rate with close to 500 million internet users today2. Indians are at the...

Cryptocurrency threat predictions for 2019

Kaspersky Security Bulletin: Threat Predictions for 2019 Threat predictions for industrial security in 2019 Cyberthreats to financial institutions 2019: overview and predictions Introduction – key events in 2018 2018 saw cryptocurrency become an established part of many people's lives, and a more...

Friday Squid Blogging: Squid Falsely Labeled as Octopus

Two New Yorkers have been charged with importing squid from Peru and then reselling it as octopus. Yet another problem that a blockchain-enabled supply-chain system won't solve. As usual, you can also use this squid post to talk about the security stories in the news that I haven't covered. Read ...

Code injection

A gambling smart contract implementation for RuletkaIo, an Ethereum gambling game, generates a random value that is predictable by an external contract call. The developer wrote a random function that uses a block timestamp and block hash from the Ethereum blockchain. This can be predicted by...

CVE-2018-17968

A gambling smart contract implementation for RuletkaIo, an Ethereum gambling game, generates a random value that is predictable by an external contract call. The developer wrote a random function that uses a block timestamp and block hash from the Ethereum blockchain. This can be predicted by...