Crypto & Blockchain Security

I’ve been providing blockchain security and crypto compliance training awareness sessions since 2013. I’m sharing my latest blockchain security training material under the Creative Commons...

Network Attacks: A Deep-dive Network attacks are a class of exploits that focus on the isolation and manipulation of individual nodes or groups of nodes....

$566M worth of BNB was stolen from Binance’s cross-chain bridge BSC Token Hub, but how they responded to the hack will be the most...

In November 2021, a popular Twitter user and cryptocurrency enthusiast @Oxflim tweeted about a particularly nasty incident that happened to him. He lost his...

Consensus Attacks: A Deep-dive Where centralized systems operate on the basis of centralized permission, blockchain protocols proceed on the basis of decentralized consensus. While this...

Introduction Cryptocurrencies like Bitcoin and Ethereum derive their security from cryptographic algorithms – mathematical puzzles that are practically impossible for classical computers to solve in...

Blockchain is a rapidly-evolving technology with a great deal of interest and investment. Decentralized Finance (DeFi), in particular, has a great deal of money...

Getting to the bottom of the exploit that led to one of the biggest hacks in the history of decentralized finance.  In order to understand...

Recent events like the FTX meltdown have sparked interest and conversations about how the incident could have been prevented.  In the case of FTX,...

Western publications often picture the People’s Democratic Republic of China (hereafter China) as the world’s chief propagator of cyberattacks. But the picture is much...

Code reuse is considered best practice in software engineering.  Reusing high-quality, secure code can speed development processes and often results in higher-quality code than...

The full story behind the exploit that led to the fraudulent minting of 120,000 wETH and threatened to crash Solana. Early February of 2022 was...

Many believe total anonymity is possible using privacy enhanced cryptocurrencies. It might not always be the case. Are popular cryptocurrencies like Bitcoin and Ethereum private? Absolutely...

This article is the second in a four-part series discussing the differences between traditional IT security / cybersecurity and blockchain security.  Check out the...

You may have heard, over the last year or two, about the new technological miracle that is the blockchain. It seems that every banker,...