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Will Grana Will Grana
Will Grana

Will Grana

Solutions Engineer at Zscaler

I write about cybersecurity and networking, with a focus on learning by building. Here I share hands-on labs, practical guides, and lessons from working through real problems.

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How One Email Turned My AI Agent Into a Data Exfiltration Tool
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Security Homelab ai security prompt-injection openclaw zscaler
I set up OpenClaw in my lab to read email and maintain a local report, then used one attack email to make it upload confidential data. I traced the transfer and blocked the next upload while the useful automation continued.
Building a Zero Trust Lab for Enterprise AI Apps
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Security Homelab ai zero-trust zscaler aws mcp
I built a realistic enterprise AI app stack and wrapped it with least-privilege private access, model governance, AI guardrails, MCP tool use, and secure workload egress.
Secure Homelab 2025: Public Plex with Cloudflare + DMZ
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Homelab networking security homelab
Secure homelab hosting internet-reachable Plex with Cloudflare reverse proxy, DMZ segmentation, strict firewall policy, Unraid NAS, Proxmox, and practical redundancy.
Building a Network Automation Lab Environment - EVE-NG Ansible
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Guides networking eve-ng ansible automation
Want to learn about network automation? Step one is creating your own, personal, network automation lab environment that can be used as a platform for learning various automation tools and techniques.
Interpreting a Cisco Routing Table
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Guides cisco networking ccna
How to interpret a Cisco IOS Routing table, a critical skill for predicting the path traffic will take across a network topology