United Kingdom – MumsNet


Exploit: Software glitch. 
MumsNet: Parenting advice website.

Risk to Small Business: 1.888 = Severe: Mumsnet has reported an incident to the UK information commissioner after realizing that a software upgrade allowed users to see details of other users’ accounts. Specifically, if two users logged in at the same time, their accounts would be switched and they would have the ability to post as another person, view personal information, and read private messages. At first, the company explained that 4,000 users could have been affected, but quickly concluded that only 46 accounts were breached. Luckily, no payment information was involved, and others have commended the company’s incident response. It remains to be seen how UK moms will react.

Individual Risk: 2.571 = Moderate: Given that others were able to access their accounts and view private details, users should feel somewhat violated but even more importantly, understand the weight of the information they post online. Even though this particular event was just a software glitch and entirely innocent in nature, it could have been leveraged to execute malicious cybercrime.

Customers Impacted: Unknown
How it Could Affect Your Customers’ Business: For those doing business in “privacy-intensive” sectors, especially ones that primarily rely on user accounts, data security should be a number one priority. Users are becoming more cautious about the information they share online, and business ecosystems or products that rely on such details must ensure absolute protection.

ClearYolk to the Rescue: We offer industry-leading detection by monitoring the Dark Web for exposed data.


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Monitor all users (up to XX) 150+
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