Dark web, VPNs make it tough for Delhi Police to probe bomb threat emails to schools

A fresh wave of bomb threats targeting schools and colleges has kept Delhi Police on its toes as many education institutes panicked for three days straight, with senior officers saying the emails were sent using encrypted networks, making them hard to track.

Cyber experts of the Delhi Police and senior officers investigating the threats said the senders are using Virtual Private Networks (VPNs) and the dark web.