Category: Article

Explaining how to exploit batchOverflow in smart contracts ERC20

Introduction According to a group of cybersecurity researchers a new discovery has been made in relation to a new vulnerability in the tokens of Ethereum. This perceived vulnerability relates to certain tokens based on the ERC-20 standard. The vulnerability, referred to as batchOverFlow, is described by the PeckShield startup on Medium in the following article: New batchOverflow Bug […]

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Fungibility & Blockchain

In the Blockchain world, Fungibility is mostly discussed in conversations relating to ethereum and the use of ethereumapplications. So what is it, and why is it relevant? To answer this question, we need to consider tokens, tokenization and what tokens represent. Using cryptocurrency as our example – each token coin) represents the same value as […]

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Blockchain & Healthcare

Introduction to Blockchain Blockchain is a distributed protocol that allows to exchange information or value (tokens), between two or more parties. The information in form of transactions contained in the network is validated through consensus. Blockchain network acts as a source of trust between parties. Namely, it is a protocol that generates trust in a […]

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Basic Cryptography to understand Blockchain Technology

cryptography. From Greek κρυπτός kryptós ‘hidden secret’ and γράφειν graphein, ‘to write’. 1.The art of writing or solving codes.   Cryptography is an area of Computer Science and Mathematics that studies the algorithms used to hide information to those not allowed to see it. Currently, these algorithms secure digital communications all over the globe. Additionally, they are […]

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Blockchain & GDPR

Blockchain technology and its applications have involve legal challenges for authorities from around the world. Defining a legal framework in this incipient phase of the technology, even though necessary, could involve a negative impact in its development. In spite of that, there are some essential aspects that should be addressed: for example: the way of […]

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