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Cybersecurity Mastery

Real cyberattacks and emerging AI threats explained without jargon—how they work, why defenses fail, and what security teams should do next.

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OpenAI Shut Down Its Rogue AI Agents. They Found Another Way to Communicate.

Today’s post explores something deeper: what happens when autonomous agents discover a useful behavior on their own, and find new ways to continue it even after humans try to shut it down.

How OpenAI's Agent Went Rogue And Hacked Into HuggingFace Company!

Today’s post breaks down an extraordinary AI security incident: an autonomous agent breaks out of its benchmarking lab to hack into a company that hosted the benchmark solutions!

How a Hidden Prompt Let an AI Agent Escape Cursor’s Sandbox

Today’s post breaks down how a poisoned instruction hidden inside a web search result convinced an AI coding agent to disable its own sandbox.

Why AI-Driven Attack Exploitation Changes Everything Defenders Thought They Knew

Today’s post breaks down a real attack where an attacker handed control to an AI agent after gaining initial access, and the agent took it from there, exploring, adapting, and exfiltrating on the go!

How Hackers Abused Meta's AI Agent to Take Over Instagram Accounts & Key Insights!

Today's post breaks down how Meta's AI support chatbot was abused to take over Instagram accounts and why the real failure was an architecture that let an LLM make irreversible security decisions

How a VS Code Extension That Was Live for Just 18 Min Handed Attackers 3,800 of GitHub’s Internal Repos!

Today’s post breaks down how GitHub was compromised through a poisoned VS Code extension that silently spread across developer machines and ultimately led to the theft of ~3,800 private repos

How The Latest TanStack Attack Added a “Dead Man’s Switch” to Supply Chain Malware!

Today’s post breaks down how attackers compromised TanStack’s release pipeline, poisoned GitHub Actions cache, and introduced a dangerous new concept into supply chain attacks: the “Dead Man’s Switch"

How Simply Opening a GitHub Repo in Claude Code Can Compromise Your Entire System!

Today’s post breaks down a dangerous new attack class where hidden project configuration files can silently turn AI coding assistants into execution engines for attackers.

How an AI Tool Found a 9-Year-Old Linux Bug in Under an Hour!

Today’s post breaks down how a tiny performance tweak turned into a privilege-escalation flaw—and how AI is changing the way such bugs are discovered.

Vercel Hack: How an AI Productivity Tool Became the Entry Point to a Multi-Million Dollar Breach

Today’s post breaks down how a single OAuth approval turned a productivity tool into an attack path—leading to massive compromise of Vercel customer data