Data breach

Upstox data breach

111,002 accounts · breached April 8, 2021

What happened

In April 2021, Indian brokerage firm Upstox suffered a data breach. The incident exposed extensive personal information on over 100k customers including names, genders, dates of birth, physical addresses, banking information and passwords stored as bcrypt hashes. Extensive "know your customer" information was also exposed including scans of bank statements, cheques and identity documents complete with Aadhaar numbers.

Description by Have I Been Pwned

What data leaked

  • Bank account numbers
  • Dates of birth
  • Email addresses
  • Family members' names
  • Genders
  • Government issued IDs
  • Income levels
  • Marital statuses
  • Nationalities
  • Occupations
  • Passwords
  • Phone numbers
  • Physical addresses

What to do if you had an account

  1. Change the password. Change your password on this service. If you used the same password anywhere else, change it there too: attackers try leaked email and password pairs on other sites automatically. A password manager makes one unique password per site practical.
  2. Turn on two-step sign-in. Enable two-factor authentication where the service offers it, preferably with an authenticator app or a passkey. A leaked password alone is then not enough to get in.
  3. Expect targeted phishing. Leaked contact details are used to write convincing fake messages that mention the breached company or your real name. Do not click links in unexpected emails or texts about this account; go to the site by typing its address.
  4. Watch for scam calls and SIM swaps. Be suspicious of calls and texts that claim to be from your bank or a courier. Ask your mobile operator for a port-out or SIM-change PIN if it offers one.
  5. Check your bank statements. Review recent card and account transactions and report anything you do not recognise. If full card numbers were exposed, ask your bank to replace the card.
  6. Guard against identity fraud. Identity documents and dates of birth cannot be changed like a password. Consider a credit freeze or fraud alert where your country offers one, and be wary of anyone who 'verifies' you using those details.

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