Release Date: 19/04/2026 | Issue: 334
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CloudSecList is a newsletter for busy professionals who want to keep up to date with the cloud security industry. Hand-curated by Marco Lancini.
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This week's articles


The “AI Vulnerability Storm”: Building a “Mythos-ready” Security Program
AI, as demonstrated by Anthropic's Mythos, has significantly increased the likelihood of attackers discovering new vulnerabilities, creating new exploits, and using them in complex automated attacks at scale. While AI also increases the speed of patch development and reduces defects in new software, defenders still face a heavier relative burden due to the inherent limitations of patching. Attackers gain asymmetric benefits.


All Your Claude Are Belong To Us: Reversing Claude Code's Remote Control Protocol
Researchers reverse-engineered Claude Code's ("claude.exe") undocumented "--sdk-url" flag, fully mapped its CCRv1 WebSocket remote control protocol (NDJSON over WebSockets), and implemented a Python C2 server. The flag accepts arbitrary URLs with no authentication, enabling post-compromise beaconing.


Breaking the Patch Sound Barrier: Your Vulnerability Remediation Will Not Keep Up With AI Exploit Speed. So?
AI accelerates both vulnerability discovery and exploit development, but legacy environment remediation speed remains fixed. Prioritization alone won't suffice when risky vuln counts outpace patching capacity. Solutions: eliminate legacy systems, auto-patching culture, micro-segmentation, and increasing overall IT lifecycle velocity.


Scaling Vulnerability Management with AI: What Actually Worked
How Synthesia built an AI-powered vulnerability management program to scale InfoSec: automating triage, validation, and fixes across SAST and SCA to reduce backlog and ship faster.


GitHub Actions Security Pt 1: Attacks & Defenses
Part one of a two-part series on GitHub Actions security, covering the core threat model, common misconfigurations, and real-world attack examples.


Passkeys are Your New Best Friend
A lightweight intro to passkeys from Google.

Sponsor

The governance gap hiding inside the AI agent boom

AI agents are using human credentials, acting autonomously, and spawning sub-agents. Yet 41% of orgs still rely on standing permissions to govern them. No lifecycle. No offboarding path.
C1's 2026 Future of Identity report surveyed over 500 IT and security leaders and reveals where agent governance is breaking down: excessive privileges, weak audit trails, and long-lived credentials. Identity has become the make-or-break layer – not just for security, but for enabling AI at scale.

Read the full report (ungated)

Tools


just
Just a command runner.


clauditor
Security configuration scanner for Claude Code.


kahlo-mcp
A Frida MCP server to enable autonomous AI assistance for Android instrumentation. See also the companion blog post.


clawsec
A complete security skill suite for OpenClaw's family of agents. Protect your SOUL.md (etc') with drift detection, live security recommendations, automated audits, and skill integrity verification. All from one installable suite.

From the cloud providers


#AWS   A framework for securely collecting forensic artifacts into S3 buckets
Blog presenting an AWS architecture for securely collecting forensic artifacts into S3, using IAM least-privilege session policies, STS time-limited credentials scoped per case prefix, KMS encryption, S3 versioning, and an automated Step Functions/Lambda/SSM workflow deployable via AWS CDK.

Upcoming Events


CONF   AI Security Summit London
May 14, 2026 | London, United Kingdom

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Thanks,
Marco
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