Fuzzing Bitcoin with the Defensics SDK, part 2: Fuzz the Bitcoin protocol

In part two of this series, learn how to create a data model for the Bitcoin network protocol and use the Defensics SDK to perform fuzzing on bitcoind. In the previous article, you saw how to set up a test bed for bitcoind. We created two containers, fleur and viktor, and set up communication between the two bitcoind instances. In this article, learn how to create a data model for the Bitcoin network protocol, and then use this model in the Defensics® SDK to perform fuzzing on bitcoind.


Fuzzing Bitcoin with the Defensics SDK, part 1: Create your network

This is the first part of a two-part advanced technical tutorial that describes how you can use the Defensics SDK to set up your own Bitcoin network. This is the first of two articles that describe how to use the Defensics® software development kit (SDK) to fuzz Bitcoin software. Specifically, you’ll learn how to model one of the Bitcoin network protocol messages and use the Defensics SDK to perform fuzzing on the bitcoind process.


Cryptocurrency exchange Eterbase hacked, $5.4 million worth of funds stolen

European cryptocurrency exchange platform Eterbase has announced that it has suffered a security breach which saw malicious hackers access its network and steal funds worth US $5.4 million. In a message posted on Telegram, the Slovakian cryptocurrency exchange listed the six hot wallets plundered by cybercriminals for their Ether, Tezos, Bitcoin, ALGO, Ripple, and TRON riches.


Security concerns and solutions regarding blockchain use in healthcare

The healthcare industry is transforming with the integration of ground-breaking technologies capable of storing patient records electronically. The shift to the digitization of systems makes a variety of healthcare solutions possible that never could have been imagined — but it also puts healthcare data at risk to hackers and cyber attacks. In answer to this problem, blockchain technologies are emerging as a viable option for the storage and updating of electronic health records (EHRs).


No, You Still Don't Need a Blockchain

A couple of years ago, I wrote about why you don’t need a blockchain. Blockchain is one long transaction log that always gets written to and is never backed up. It’s a ledger, more or less, with some math. And while distributed ledgers can be useful for some scenarios, I’m here today to say you still don’t need a blockchain. What turns a distributed ledger into a blockchain is cryptography for creating a digital signature to reduce the risk of data tampering.