R.K. Chidambaram.

Cloud security engineer · Toronto · 15+ years

I build and break production systems on AWS and Kubernetes, and I write down what I learn. My day job lives in IAM, detection engineering, CI/CD and software supply-chain security, and the agent-identity problems the industry is still working out.

Weekly Recon is the brief I'd want in my own inbox: one attack worth knowing, one detection worth building, one defender move worth shipping.

The path here was bare-metal sysadmin, then AWS architect, then cloud security. That climb is why every issue resolves to something you can run, not a headline you can nod at. Written for engineers with a terminal open.

OSCP OAWSP AWS Security Specialty AWS Advanced Networking RHCE

proof of work

// GitHub Actions scanner

scan.defensive.works

Finds injection and secret-leak patterns in your CI workflows.

// cloud supply-chain CTF

teampcp-goat

A vulnerable AWS lab: 6 supply-chain flags across 2 modules.

// engineering notes

raajhe.sh

Long-form writeups on cloud security and the tools I build.

// where I post daily

One attack, one fix, most weekdays. Same voice as the brief.

Get the next brief in your inbox.

One real attack, walked to the defender move. Every Tuesday. Free.