One week after a researcher revealed a publicly configured database exposing more than 275 million sensitive records on Indian citizens, a hacking group removed that data and replaced it with an apparent ransom note.

The 275,265,298 records appear to have been collected in a large-scale data scraping operation, according to researcher Bob Diachenko, who found the open MongoDB database and disclosed the matter to the public on May 1. The records include personally identifiable information such as names, email addresses, gender, education level and area of specialization, professional skills, mobile phone numbers, places of employment, employment histories, birth dates and current salaries.

In a blog post yesterday, Diachenko said he had also privately alerted the Indian CERT, yet the database remained open and searchable through May 8, at which time the "Unistellar" hacking group replaced its contents with a message. While the message contained "no specific demands," it did include an email address for the database owner to contact so they could "negotiate the return of data,"
Diachenko told SC Media.

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