New Delhi: The IT Ministry on Thursday sought a detailed response from WhatsApp on the issue of an Israeli spyware that was allegedly used to target Indian journalists and human rights activists through its platform. WhatsApp has been asked to submit its reply by November 4.

The ministry has written to WhatsApp seeking its response on the matter, a senior government official told PTI.

On Thursday, Facebook-owned WhatsApp said Indian journalists and human rights activists were among those globally spied upon by unnamed entities using an Israeli sypware Pegasus.

Reports stated that Indian journalists were contacted and informed that their phones had been under surveillance for a two-week period in May 2019.

WhatsApp said it was suing NSO Group, an Israeli surveillance firm, that is reportedly behind the technology that helped unnamed entities' spies to hack into phones of roughly 1,400 users.

Reports claim that WhatsApp has sued an Israeli firm in San Francisco for targeting over 1400 users with Pegasus.

These users span across four continents and included diplomats, political dissidents, journalists and senior government officials.

However, it did not say on whose behest the phones of journalists and activists across the world were targeted.

(With PTI inputs)