🚨 The Problem: The Epidemic of Mobile Smishing in India

If you live in India or follow digital fraud trends, you already know the story:

"Dear SBI user, your YONO account is blocked. Update KYC immediately at [bit.ly/fake-link]."

"Electricity bill unpaid. Power will be disconnected tonight at 9:30 PM. Call officer at 98xxxxxx."

Unsolicited courier APKs, fake part-time job offers on WhatsApp, and malicious UPI "refund" links.

These attacks target millions every single day. But from a cybersecurity and machine learning perspective, detecting them accurately is deceptively hard:

Linguistic Code-Mixing : Messages are frequently written in Hinglish (Romanized Hindi), Devanagari Hindi, English, or a chaotic mix of both. Generic spam filters trained on Western datasets fall flat.

Multimodal Delivery : Half the time, users receive messages as notification screenshots or forward compressed images over WhatsApp.…