CoinTracker data breach

Breach date: 2022-12-01. Added to this index: 2022-12-12. Accounts affected: about 1.6M. Domain: cointracker.io.

What happened

In December 2022, the Crypto & NFT taxes service CoinTracker reported a data breach that impacted over 1.5M of their customers. The company later attributed the breach to a compromise SendGrid in an attack that targeted multiple customers of the email provider. The breach exposed email addresses and partially redacted phone numbers, with CoinTracker advising that the later did not originate from their service.

Breach data sourced from Have I Been Pwned, used under CC BY 4.0. Additional breach metadata provided by XposedOrNot. DataExposed is an independent service and is not affiliated with or endorsed by either.

What was exposed

  • Email addresses: The email address you used to register or log in. It is the most common field in breaches because it doubles as your username on most sites.
  • Partial phone numbers: Part of a phone number, often the last two to four digits shown in account recovery screens, or a number with some digits masked.

What to do now

  1. Check whether your own address is in this dataset with the free email breach check.
  2. Review the accounts connected to this service and turn on two-factor authentication.
  3. Turn on two-factor authentication on your email account first, because it is the reset path for everything else.
  4. Treat calls and messages that quote real details about you as hostile until you verify them another way.

Frequently asked questions

What data was leaked in the CoinTracker breach?

The CoinTracker breach exposed Email addresses, Partial phone numbers. About 1.6M accounts were affected.

Was I affected by the CoinTracker breach?

Run the free email breach check with the address you used on that service. It will tell you whether your address appears in this dataset.

What should I do about the CoinTracker breach?

Treat any message that quotes details from this breach as suspicious, turn on two-factor authentication, and consider removing your details from people-search sites if your address or phone was included.

Next steps