Blockchain security

Taking an Identity Selfie – Self-Sovereign Identity and the Blockchain

In the early 2000s, there was a lot of work around defining what digital identity was and how it could be used in a connected digital world. In 2005, Kim Cam

Blockchain Vulnerabilities: Imperfections of the Perfect System

The whole cryptocurrency and blockchain craze has attracted both fans and critics of the new tech, but the flip side is that it has lured cybercrooks, too. A

Security vulnerabilities of cryptocurrency exchanges

  1. Introduction Many experts argue that cryptocurrencies may radically change not only the financial sector but also the way society operates. The rea

The End of Bitcoin Ransomware?

Section 1. Introduction Bitcoin, a virtual currency generated through peer-to-peer technology and not controlled by any central authority, is used not only f

Bitcoin May Turn from Cybercriminals’ Biggest Asset into Their Biggest Liability

Why is Bitcoin the cybercriminals' most favorite payment method? Adam Kujawa is the head researcher at the antivirus company Malwarebytes, and he estimates

What is Bitcoin?

Bitcoin is a digital currency or, we might say, electronic cash that uses peer-to-peer technology for transactions. Here peer-to-peer means it is not managed