What are the flaws inherent in both Proof-of-Work and Proof-of-Stake that make Proof-of-Signature an ideal alternative? A short explanation is given below. How does Bitcoin validate transactions and deter denial of service attacks? It requires a transaction-requesting entity to perform computational work. Inessence, it makes data creation difficult for users but data verification easy for… Read More


A Chinese state-owned telecommunications company has been ‘hijacking the vital internet backbone of western countries,’ according to an academic paper published this week by researchers from the US Naval War College and Tel Aviv University. The culprit is China Telecom, the country’s third-largest telco and internet service provider (ISP), which has had a presence inside… Read More


A software security engineer has identified 12 Python libraries uploaded on the official Python Package Index (PyPI) that contained malicious code. The 12 packages have been discovered in two separate scans by a security engineer who goes online by the name of Bertus, and have long been removed from PyPI before this article’s publication. All… Read More


A deeper investigation has revealed that hackers were stealing information for much longer than initially thought, and an additional 185,000 British Airways customer payment cards were compromised. Last month, British Airways announced that the customer data and details of some 380,000 card payments had been stolen from its network by hackers between August 21 and… Read More


Several big-name Linux and BSD operating systems are vulnerable to an exploit that gives untrusted users powerful root privileges. The critical flaw in the X.org server—the open-source implementation of the X11 system that helps manage graphics displays—affects OpenBSD, widely considered to be among the most secure OSes. It also impacts some versions of the Red… Read More


In 2015, Amazon.com Inc. began quietly evaluating a startup called Elemental Technologies, a potential acquisition to help with a major expansion of its streaming video service, known today as Amazon Prime Video. Based in Portland, Ore., Elemental made software for compressing massive video files and formatting them for different devices. Its technology had helped stream… Read More