Cor E

I'm a long time automation engineer, penetration tester, dev, network architect and *nix specialist.

Tokyo, Japan Joined on Mar 25, 2026 https://skyblue-soft.com/blog/

Work

Freelance Dev, Automation Work, and Network Architect

Cover image for The Shai-Hulud Worm Is Now Open Source — Here's How to Stop Self-Replicating Prompts Before They Reach Your LLM

Cor E

May 19

The Shai-Hulud Worm Is Now Open Source — Here's How to Stop Self-Replicating Prompts Before They Reach Your LLM

#security #llm #appsec #cybersecurity

5 min read

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Cover image for Brazilian Lawyers Fined R$84,000 for Prompt Injection in Court — Here's What Caught Them (and What Didn't)

Cor E

May 19

Brazilian Lawyers Fined R$84,000 for Prompt Injection in Court — Here's What Caught Them (and What Didn't)

#security #ai #appsec #llm

5 min read

Cover image for Hidden Audio Attacks on Voice AI: How Transcription Pipelines Get Hijacked

Cor E

May 19

Hidden Audio Attacks on Voice AI: How Transcription Pipelines Get Hijacked

#security #ai #appsec #cybersecurity

4 min read

Cover image for How a LinkedIn Bio Hijacked AI Recruitment Bots with Prompt Injection

Cor E

May 18

How a LinkedIn Bio Hijacked AI Recruitment Bots with Prompt Injection

#security #llm #appsec #cybersecurity

5 min read

Cover image for AI Can't Stop AI? Wrong Problem. Wrong Layer.

Cor E

May 17

AI Can't Stop AI? Wrong Problem. Wrong Layer.

#ai #webdev #infosec #cybersecurity

4 min read

Cover image for The $200K Morse Code Heist: How One Tweet Drained Grok's Crypto Wallet (And How to Stop It)

Cor E

May 15

The $200K Morse Code Heist: How One Tweet Drained Grok's Crypto Wallet (And How to Stop It)

#security #ai #webdev #infosec

5 min read

Cover image for How I Built a Red/Blue Team Loop That Teaches My AI Firewall to Defend Itself

Cor E

May 8

How I Built a Red/Blue Team Loop That Teaches My AI Firewall to Defend Itself

#ai #webdev #llm #cybersecurity

8 min read

Cover image for Slopsquatting: The AI Package Hallucination Attack You're Probably Not Defending Against

Cor E

May 2

Slopsquatting: The AI Package Hallucination Attack You're Probably Not Defending Against

#ai #security #opensource #python

6 min read

Cor E

May 2

Sentinel-Proxy AI Firewall Demo

#ai #webdev #security #llm

1 min read

Cover image for Your AI Agent Is Reading Poisoned Web Pages (And You Don't Know It)

Cor E

Apr 26

Your AI Agent Is Reading Poisoned Web Pages (And You Don't Know It)

#ai #webdev #infosec #llm

4 min read

Cover image for Why Your LLM Probably Has a PII Problem (And How to Fix It)

Cor E

Apr 24

Why Your LLM Probably Has a PII Problem (And How to Fix It)

#ai #webdev #llm #infosec

4 min read

Cover image for RAG Pipelines Are the Next Prompt Injection Frontier

Cor E

Apr 22

RAG Pipelines Are the Next Prompt Injection Frontier

#ai #webdev #promptinjection #security

4 min read

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Cor E

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The Shai-Hulud Worm Is Now Open Source — Here's How to Stop Self-Replicating Prompts Before They Reach Your LLM

Want to connect with Cor E?

Brazilian Lawyers Fined R$84,000 for Prompt Injection in Court — Here's What Caught Them (and What Didn't)

Hidden Audio Attacks on Voice AI: How Transcription Pipelines Get Hijacked

How a LinkedIn Bio Hijacked AI Recruitment Bots with Prompt Injection

AI Can't Stop AI? Wrong Problem. Wrong Layer.

The $200K Morse Code Heist: How One Tweet Drained Grok's Crypto Wallet (And How to Stop It)

How I Built a Red/Blue Team Loop That Teaches My AI Firewall to Defend Itself

Slopsquatting: The AI Package Hallucination Attack You're Probably Not Defending Against

Sentinel-Proxy AI Firewall Demo

Your AI Agent Is Reading Poisoned Web Pages (And You Don't Know It)

Why Your LLM Probably Has a PII Problem (And How to Fix It)

RAG Pipelines Are the Next Prompt Injection Frontier