Reversing NCMC: The Spec and The Tools

How India’s NCMC transit cards keep your balance on the chip itself: reverse engineering the wallet apps and the card protocol, then building tools of my own to read the card without the official SDK.

The Automation of Understanding

AI coding tools make cargo cult programming scale to whole systems, and the real risk is not bad code but losing the understanding of why the code works.

Closing your eyes is the best way to solve bugs.

A lot of Indian companies ignore security reports, dodge accountability, and let egos get in the way of fixing real bugs.

My schooling and dislike for further studies; The education system owes me nothing, and I owe it even less.

A toxic teacher killed my interest in school; skipping class to learn programming turned out to be the better education.

Your Cab Driver Knows Your PIN

The static 4-digit OTPs used for ride bookings could become a reused PIN across sensitive services, and anyone who has shared a cab with you already knows it.

Breaking NFC Based Travel Cards (Updated)

Reverse engineering MiFare DESFire travel cards; from reconnaissance and relay attacks to writing exploits that manipulate NFC transactions in real time.

How does one give a tech talk?

A short guide on giving tech talks that are clear, engaging, and to the point, with practical dos and a simple structure.