Extropy.io
@Extropy

A blockchain consultancy based in Oxford, specialising in developing blockchain solutions, security auditing, training & more.

 Oxford, England
linktr.ee/extropy_io
Joined March 2017
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Start the year securely with these development checklists

The exploit landscape is forever changing, to help you ensure you make a safe start to 2026 we are releasing some security checklists for you to use when developing in Web3. The first looks at
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Extropy Security Bytes: w1 & w2, 2026

Welcome back to Extropy Security Bytes, where we discuss the latest incidents shaping the Web3 landscape. Throughout 2025, we dissected the industry’s most critical incidents together. Now, as we
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Into the Ocean

We are leaving the Bay of Rainbows. behind us the "Golden Handle" that perfect polynomial curve is fading. We are heading South-West, down into the largest basin on the moon: Oceanus Procellarum, The

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The Wolf Moon

There is a super moon this weekend called the Wolf Moon so people will be able to see some of the landmarks mentioned in Chapter 1 of our Moon Math Series. If you look at the full moon and imagine the
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The Quantum Event Horizon: Cryptographic Vulnerabilities in the Ethereum Network

The intersection of quantum computing and blockchain presents a substantial cryptographic challenge. As Ethereum secures hundreds of billions in digital assets, its reliance on classical Elliptic
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Moon Math Itinerary: The Lunar Map of ZK

They call it "Moon Math" because it feels alien. They call it "Zero Knowledge" because it feels impossible. We're writing a new series to demystify the foundational math of ZKPs. But instead of dry
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Why Zero Knowledge Proofs are like a Lunar Landscape

We're writing a series exploring the famous "Moon Math" paper, but we are taking the name literally. We are going on an 8-stop journey around the Moon to learn ZKP My favourite stop? Chapter 2: The
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Extropy Security Bytes: w49, 2025

Welcome to week 49 of our weekly security roundup, where we discuss the latest incidents shaping the Web3 landscape. This week, the threats shifted from simple code exploits to systemic traps. We are
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Extropy Security Bytes: w48, 2025

Welcome to week 48 of our weekly security roundup, where we discuss the latest incidents shaping the Web3 landscape. This week, the industry received a brutal masterclass in the gap between “secure

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Extropy Security Bytes: w47, 2025

Welcome to week 47 of our weekly security roundup, where we dissect the latest incidents shaping the Web3 landscape. If last week was a breeze, this week is a full-blown storm. The ecosystem has been
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Extropy Security Bytes: w46

Welcome to our weekly security roundup, where we explore the latest developments and incidents impacting the Web3 landscape. The last two weeks have been a relatively soft breeze in crypto after the
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Extropy November Newsletter

Recent Developments in Zero-Knowledge Technology Following a Q3 2025 narrative shift back toward end-user privacy, the subsequent months have been defined by an acceleration of three dominant themes.
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