Coinbase, Bithumb, and Two Others Hit by Data Leaks: Crypto Users on Alert
Four major financial and crypto firms report data breaches, exposing customer information and internal data.
Four major financial and crypto firms report data breaches, exposing customer information and internal data. This is an original Token Times brief synthesising 2 outlets (Crypto.news, CryptoPotato), plus live market data, as of Wed, 28 Oct 2026 09:00:01 UTC.
The breaches highlight growing cybersecurity risks for crypto platforms and their users, potentially compromising sensitive data and eroding trust in centralized exchanges.
- Coinbase, Bithumb, Daishin Securities, and Mirae Asset report data breaches.
- Incidents exposed customer contact details and internal business information.
- Experts advise using unique email aliases for each exchange to enhance security.
Crypto.news and CryptoPotato both report that Coinbase, Bithumb, Daishin Securities, and Mirae Asset have disclosed separate data breaches affecting customer contact details and internal business information. While Crypto.news focuses on the incidents' occurrence and the companies involved, CryptoPotato emphasizes practical security advice from CZ, recommending unique email aliases for each exchange to prevent breaches from compromising multiple accounts. No contradictions were found between the two outlets' coverage.
Four major financial and cryptocurrency companies have disclosed data breaches, raising concerns about cybersecurity in the sector. The affected firms include Coinbase, Bithumb, Daishin Securities, and Mirae Asset Global Investments, with each reporting incidents involving unauthorized access to customer contact details and internal business information.
Reuters reported that three of the incidents were disclosed recently, indicating a potential surge in targeted attacks on crypto and financial platforms. The breaches have exposed sensitive user data, prompting calls for enhanced security measures across the industry.
CryptoPotato highlighted Binance CEO CZ's advice in response to the breaches, suggesting that users should use unique email aliases for each exchange. This strategy aims to prevent breaches from being leveraged to access other accounts and limit the damage from any single incident.
The incidents come amid a broader context of increasing cyber threats targeting the crypto industry. As centralized exchanges handle vast amounts of user data and digital assets, they remain attractive targets for malicious actors. The breaches underscore the need for robust security protocols and user education on best practices for protecting personal information.
The broader crypto market remains resilient despite these incidents, with the total market cap at $2.78 trillion and 
Bitcoin up 1.59% in the past 24 hours. The Fear & Greed Index stands at 51, indicating a neutral sentiment. However, the breaches could influence user trust and platform adoption in the short term.
Coinbase, Bithumb, and Two Others Hit by Data Leaks: Crypto — questions & answers
What information was exposed in the data breaches?
Customer contact details and internal business information were exposed in the breaches.
How can users protect themselves after these breaches?
Users are advised to use unique email aliases for each exchange to prevent breaches from affecting multiple accounts.
Which companies reported data breaches?
Coinbase, Bithumb, Daishin Securities, and Mirae Asset reported separate data breaches.
Which outlets reported this story?
This is an original Token Times brief that synthesises reporting from Crypto.news, CryptoPotato, with the key figures cross-checked for agreement across them. It is not a copy of any one article — follow the source links above for the original reporting.
Original summary — not financial advice. This is an original Token Times brief that summarises a development reported elsewhere and adds live market data for context; it is not the original article and reproduces no part of it. Follow the source link above for full details. Crypto is volatile and high-risk — always do your own research.