If you're looking to create the next big app startup idea, you might want to consider the dark side of car technology. According to a recent study by the Mozilla Foundation, cars have become a major privacy nightmare, collecting and sharing user data without consent.

The report found that all 25 car brands reviewed failed to meet the foundation's minimum privacy standards, with 92% providing little to no control over personal data and 84% sharing data with outside parties. This is concerning, especially when compared to other industries like mental health apps and sex toys, which have been shown to have better data privacy practices.

The Mozilla Foundation, known for its open-source Firefox web browser, has a reputation for standing up for the health of the internet. Its "Privacy Not Included" series has produced several reports and guides detailing how products and services handle user data, with advice on how to protect personal information.

In this report, the foundation reviewed 25 car brands, including Ford, Toyota, Volkswagen, BMW, and Tesla. What it found was alarming: all of these companies failed to meet its minimum privacy standards and were collecting more personal data than necessary. This includes sensitive information like medical data, driving habits, and even music preferences.

The study also highlighted the concerning practice of car brands sharing user data with service providers, data brokers, and potentially sketchy businesses. In fact, 76% of the reviewed car brands claimed the right to sell this personal data, while 56% were willing to share it with government agencies or law enforcement if requested.

Tesla was particularly singled out for its poor privacy practices, with the foundation flagging it in every category. Its AI-powered autopilot system was highlighted as "untrustworthy" due to its involvement in numerous crashes and fatalities.

The report also broke down how car companies collect and share user data, including sensitive information like photos, immigration status, and even sexual activity. This raises serious concerns about the privacy of car owners and drivers.

In response, Mozilla has started a petition urging car companies to stop their data collection programs and to prioritize user privacy. The foundation is calling on consumers to demand better privacy practices from these companies, highlighting that "our hope is that increasing awareness will encourage others to hold car companies accountable for their terrible privacy practices."

As app startup ideas continue to emerge, it's essential to consider the potential privacy implications of new technologies. By prioritizing user privacy and transparency, we can create a safer and more secure digital environment for everyone.