Delhi blast: Terror suspects used clever tricks to hide messages

India Nov 15, 2025

After the Red Fort blast in New Delhi, police discovered that the main suspects, including Dr. Umar Un Nabi, communicated using unsent email drafts in a shared account.
By never actually sending emails, they left no digital trail—making it tough for investigators to track them down.

More on their secretive methods

The group didn't stop there—they also used encrypted apps like Threema, which don't need phone numbers or email addresses and keep chats private with end-to-end encryption.
Investigators think they even set up a private Threema server to share sensitive documents, showing just how far they went to stay under the radar.