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@lewis-dev

Lewis Gilchrist

@lewis-dev·London, UK·Joined April 2026

Sharing my thoughts regarding the emergent technologies related to Digital Security and Digital Privacy.

About

learning about zero-knowledge proofs and decentralized identity, one confusing whitepaper at a time.

Available for

Freelance work, technical writing

Lewis Gilchrist's blogs

My Take on Digital Privacy and Digital Verificationdevabkk.hashnode.dev8 posts

About

learning about zero-knowledge proofs and decentralized identity, one confusing whitepaper at a time.

Available for

Freelance work, technical writing

Lewis Gilchrist's blogs

My Take on Digital Privacy and Digital Verificationdevabkk.hashnode.dev8 posts

Articles Comments

Recently published

LGLewis Gilchristindevabkk.hashnode.dev·Aug 24 · 7 min read

The real reason online stores make you verify you're human twice now

Something changed in the last eighteen months that nobody announced. Somewhere between 2023 and now, the friction at online checkout roughly doubled. Add to cart, proceed to payment, and suddenly: cli

LGLewis Gilchristindevabkk.hashnode.dev·Aug 13 · 7 min read

The re-identification problem that breaks "anonymized" data

"Anonymized" is one of the most misleading words in data privacy. It sounds like a guarantee: this data has been stripped of anything that could identify you. In practice, it is closer to a descriptio

LGLewis Gilchristindevabkk.hashnode.dev·Aug 13 · 8 min read

Hashing is not the same as anonymizing, and the difference matters

"We hash your data so it is never stored in plain text." This is a true statement that can mean very different things depending on what the data is, how the hash is constructed and what the attacker h

LGLewis Gilchristindevabkk.hashnode.dev·Aug 12 · 5 min read

Why detecting deepfakes is the wrong problem to solve

And what the alternative architecture looks like I have been following deepfake detection research for the past year, mostly out of frustration. The frustration is not that the research is bad. Some o

LGLewis Gilchristindevabkk.hashnode.dev·Jun 19 · 13 min read

What is World ID? How proof of human works without revealing who you are

World ID is a digital credential that proves you are a unique human — without revealing who you are. That one sentence is what most explainers get wrong. They lead with biometrics, or blockchain, or p