Israel-based crypto brokerage Coinmama suffered a major data breach affecting 450,000 of its users. The breach was reportedly part of a mammoth, multi-platform hack that affected 24 companies and a total of 747 million records — among them gaming, travel booking and streaming sites. A list of around 450,000 email addresses and hashed passwords of Coinmama users who registered on its platform before Aug. 5, 2017 were also posted on a dark web registry. However, Coinmama's response team took all required steps and asked the potentially affected users to reset their passwords upon login, as well as monitor its array of systems for suspicious activity or unauthorized access.