Nothing CMF Watch app had a worrying security problem | Phones

Nothing Cmf Smartwatch 01.jpg

The Nothing Phone (2) has stellar software in terms of the user experience, but the company is starting to develop a bit of a track record around worrying security problems, with the latest example coming from the company’s CMF sub-brand.

CMF is a part of Nothing’s brand which is focused on delivering very low-cost products, including a $69 smartwatch. That watch connects through an app that is used for setup and some controls, but that app had a worrying security problem behind the scenes.

As spotted by 9to5Google contributor Dylan Roussel and detailed in a thread on Twitter/X, the CMF Watch app has partially fixed a security vulnerability that could expose user email addresses and passwords.

The app itself, as Dylan initially discovered, was developed with the help of a separate company, “Jingxun.” That in itself isn’t really an issue, but the vulnerability laid a bit deeper within the app. As Dylan explains, the CMF Watch app requires users to create an account with an email address and a password, and the app then encrypts that data, which is a good thing. However, the app also left the decryption method for that data available in the app, meaning it wouldn’t take much for a malicious party to access that sensitive information.

Effectively, it made the encryption practically useless.

9to5Google assisted Dylan in reporting the issue to Nothing in September as, at the…

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