BigBasket breach: How can people check if their data was hacked?

Most net users have at some time or the other used some service, which has been compromised. You can probe further to check what that data is

The Dark Web is an unregulated part of the internet. It is not indexed by search engines. Dark Websites are deliberately bare-bones, without named urls. This is a haven for cybercriminals, and also those who wish to avoid being “outed” by search engines, or tracked by unfriendly regimes.

The cyber-security firm, Cyble, routinely searches the Dark Web for criminal activity. On October 30, Cyble discovered that India’s online supermarket, BigBasket, had been hacked. The data of around 20 million BigBasket customers were being hawked on the Dark Web at an asking price equivalent to $40,000. This included fields such as