US software company Cloudflare has denied any involvement in two websites that a hacker used to sell stolen medical records and personal information belonging to customers of leading Indian insurer Star Health.

The announcement was made in response to the company's involvement in an Indian lawsuit that Star Health filed last week, in which the insurance claimed that Cloudflare was the website's host.

Star has also filed lawsuits against Telegram and self-described hacker xenZen in response to rumors that Telegram chatbots were exposing private information to the public, including phone numbers, copies of identity cards, and blood tests of its users.

The complaint was filed in the midst of increased international scrutiny of Telegram and the founder Pavel Durov's detention in France last month. It is claimed that the app's capabilities and content filtering are being exploited for illicit purposes. Durov and Telegram responded to the criticism and refuted any misconduct.

A copy of the decision states that Star has been granted a temporary injunction by a court in its home state of Tamil Nadu, compelling Telegram and the hacker to disable any chatbots or websites in India that display the data online.

Star had earlier stated that there had been "no widespread compromise" and that private customer information was still safe.

In the case, Star has also sued US-listed software company Cloudflare Inc NET.N, claiming that its services were used to host the compromised data on websites.

In a newspaper ad published in The Hindu on Thursday, Star, a publicly traded company with a market valuation of more than $ 4 billion, revealed the specifics of the lawsuit for the first time.

In this case, the court has sent letters to both Telegram and Cloudflare. The case will be heard again on October 25.

The Star complaint coincides with increased international attention of Telegram in the wake of Pavel Durov's arrest in France last month. The app's functionality and content moderation are reportedly being exploited for illicit purposes.