Breaking: Cryptocurrency Exchange Coinmama Hacked, Over 450000 Customers Affected

The only information it has that the hackers was also behind breaches of 23 other companies affecting in total 747 million users

One of the major and oldest cryptocurrency exchange was hacked on February 15, 2019. According to the email received by Jaocb Canfeild, Cryptocurrency exchange Coinmama is hacked and 450,000 users were affected with it. He tweeted a part of an email, he has received from coinmama.

Coinmama also posted the news on its blog saying, It was informed of a list of emails and hashed passwords that were posted on a dark web registry. Its Security Team is investigating, and based on the information at hand, it believe the intrusion is limited to about 450,000 email addresses and hashed passwords of users who registered until August 5th, 2017. This comes as part of a larger breach affecting 24 companies and a total of 747 million user records.

There has been no evidence of this data being used by perpetrators. Given the dated nature of the published data, it has no reason to suspect that any other Coinmama systems are compromised. It does not store credit card information of its users.


After this incidence, It has recently updated more about the hack on its blog explaining in details. It stated:


As soon as Coinmama became aware of the incident, it immediately established an Incident Response Team to identify the nature and scope of the intrusion. It also took immediate action consulting with leading cybersecurity firms, and taking steps to protect its customers, including:

  • Notifying users that were affected by this breach with steps to safeguard their accounts and protect their data

  • Requiring users who are possibly affected to reset their password upon next login and urging all other users to verify that their passwords are unique and strong

  • Monitoring our systems for suspicious activity

  • Adding continuous enhancements to its systems to detect and prevent unauthorised access to user information

  • Monitoring for any external indication that the compromised data is being used, and keeping its customers notified

It also said that, hack only affected emails and hashed passwords of users who registered prior to August 5th, 2017. No credit card details were included, as it does not store customer credit card details.


As per the company, it doesn't know the individual or group behind this authorized access. The only information it has that the hackers was also behind breaches of 23 other companies affecting in total 747 million users.


All the Coinmama customers affected by the hack was already sent the notification email regarding the hack and asked to reset their passwords. If you still not updated your password we also request you to do it immediately.


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Disclaimer & Suggestion : Please always to your due diligence before investing in any cryptocurrency or project.