Share this article

Crypto Wallet Maker Ledger Loses 1M Email Addresses in Data Theft

An unknown hacker gained access to the wallet maker's marketing database, stealing a million email addresses as well as personal information for 9,000 customers.

Updated Sep 14, 2021, 9:37 a.m. Published Jul 29, 2020, 9:30 a.m.
(Quinten Jacobs/Shutterstock.com)
(Quinten Jacobs/Shutterstock.com)

Ledger said customer details have been stolen in a data breach that may well have been exploited for over two months.

STORY CONTINUES BELOW
Don't miss another story.Subscribe to the Crypto Daybook Americas Newsletter today. See all newsletters

  • In a note to clients Wednesday, CEO Pascal Gauthier said the French hardware wallet provider fell victim to a large-scale data breach from an unauthorized third party.
  • The hacker, whose identity remains unknown, gained access to Ledger's e-commerce and marketing database.
  • Customers affected include those who signed up for Ledger's newsletter or to receive promotional material.
  • Information stolen included email addresses, with a smaller "subset" of 9,500 customers also having their full names, postal addresses and phone numbers exposed.
  • In total, the company estimates around one million email addresses have been stolen.
  • Payment information, passwords and cryptocurrency funds have not been affected.
  • The data breach was first detected as part of a bug bounty program on July 14.
  • Ledger estimates the data may have been accessed from April until the end of June.
  • A Ledger spokesperson confirmed to CoinDesk the data breach has now been fixed.
  • The wallet provider has now alerted the French authorities and is filing a complaint with the public prosecutor.
  • Ledger said it has not found customer information disseminated online nor has it received any ransom demands.

See also: Coincheck Customers Fall Victim to Data Breach After Domain Account Error

More For You

Protocol Research: GoPlus Security

GP Basic Image

What to know:

  • As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
  • GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
  • Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.

More For You

Bitcoin gets 'base case' price target of $143,000 at Citigroup

Bitcoin (TheDigitalArtist/Pixabay)

The Wall Street bank said its bitcoin forecast relies on further crypto ETF inflows and a continued rally in traditional equity markets.

What to know:

  • Citigroup's base case for bitcoin (BTC) is a rise to $143,000 in 12 months.
  • Analysts highlight $70,000 as key support, with the potential for a sharp rise due to revived ETF demand and positive market forecasts.
  • The bear case sees bitcoin falling to $78,500 amid a global recession, while the bull case predicts a rise to $189,000 due to increased investor demand.