Why did Google stop human review of EU voice data?

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Google Suspends Human Review of EU Voice Data Following Privacy Concerns

Google has temporarily halted the practice of human workers listening to audio recordings from its digital assistant across the European Union. This decision follows a leak that revealed private conversations were accessible to staff, prompting a German data protection official to initiate legal proceedings. The suspension, effective from August 1 for a maximum of three months, was a preemptive measure by Google to comply with the EU's General Data Protection Regulation (GDPR) and address privacy risks.
Leak Exposed Private Conversations

The immediate catalyst for this action was the exposure of Dutch-language conversations recorded by Google Assistant. These leaked audio files reportedly contained sensitive discussions about users' personal lives, including details about their relationships and children, as well as private data such as home addresses. The incident highlighted significant privacy vulnerabilities associated with the collection and review of voice data.
German Official Initiated Legal Procedure

Johannes Caspar, the Hamburg Commissioner for Data Protection, launched a legal procedure to halt the human review of voice data for a period of three months, the maximum duration permitted under GDPR. This official action compelled Google to suspend its operations involving human evaluation of audio recordings across the 28 EU member states. Google's decision to preemptively suspend the practice aimed to avoid a formal legal order.
Google's Response and Safeguard Review

In response to the leak and subsequent action, Google stated that it suspects the breach originated from a contracted language expert. The company maintained that human listeners accessed a small fraction of the audio data, at most 0.2%, and that these files were not linked to user accounts. Google also emphasized that users have the ability to disable data archiving or opt for automatic deletion of their data. Furthermore, the company announced a comprehensive review of its existing safeguards to prevent future misconduct.
Broader Privacy Risks Highlighted

The data protection authority noted that devices offering voice assistance, including those from Apple and Amazon, pose substantial privacy risks not only to the owners but also to individuals who interact with these devices, such as household members or guests. This broader concern prompted an invitation for other providers of speech assistance systems to also review their implemented measures to ensure adequate protection of user privacy.

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Why did Google stop human review of EU voice data?

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