NEW YORK (AP) — Facebook has paid contractors to transcribe audio clips from users of its Messenger service, raising privacy concerns for a company with a history of privacy lapses.
Until recently, the practice was common in the tech industry. Companies say human reviewers helps improve their services. But users aren’t typically aware that humans are reviewing audio.
The bigger concern is the potential of rogue employees or contractors leaking details. The practice at Google emerged after some of its Dutch language audio snippets were leaked. More than 1,000 recordings were obtained by Belgian broadcaster VRT NWS. They found that some recordings contained sensitive personal conversations. They also had information identifying the person speaking.
“We feel we have some control over machines,” said Jamie Winterton, director of strategy at Arizona State University’s Global Security Initiative. “You have no control over humans that way. There’s no way once a human knows something to drag that piece of data to the recycling bin.”
Jeffrey Chester, executive director for the Center for Digital Democracy privacy-advocacy group, said it’s bad enough that Facebook uses artificial intelligence as part of its data-monitoring activities. He said the use of humans is “even more alarming.”
Tim Bajarin, tech columnist and president of Creative Strategies, said it’s a bigger problem when humans use the information beyond its intended purpose.
Facebook said audio snippets reviewed by contractors were masked so as not to reveal anyone’s identity. It said it stopped the practice a week ago. The development was reported earlier by Bloomberg.
Facebook isn’t alone
Google said it suspended doing this worldwide while it investigates the Dutch leaks. Amazon said it still uses humans, but users can decline, or opt out, of the human transcriptions. Published reports say Apple also has used humans, but has stopped. Apple didn’t immediately respond to requests for comment.
A report from tech news site Motherboard last week said Microsoft also uses human transcribers with some Skype conversations and commands spoken to Microsoft’s digital assistant, Cortana. Microsoft said in a statement that it has safeguards such as stripping identifying data and requiring non-disclosure agreements with contractors and their employees. Yet details leaked to Motherboard.
After the Motherboard report, Microsoft said it “could do a better job” explaining that humans listen to the conversations. It updated its frequently asked questions for Skype to say that using the translation service “may include transcription of audio recordings by Microsoft employees and vendors.”
It makes sense to use human transcribers to train artificial intelligence systems, Winterton said. But the issue is that companies are leading people to believe that only machines are listening to audio, causing miscommunication and distrust, she said.
Where do privacy policies come in?
The companies’ privacy policies — usually long, dense documents — often permit the use of customer data to improve products and services, but the language can be opaque.
“We collect the content, communications and other information you provide when you use our Products, including when you sign up for an account, create or share content, and message or communicate with others,” Facebook’s data-use policy reads . It does not mention audio or voice specifically or using transcribers.
Bajarin said tech companies need to use multiple methods to refine artificial intelligence software, as digital voice assistants and voice-to-text technology are still new. But he said being more clear about the human involvement is “the very least” companies could do.
“They should be very clear on what their policies are and if consumer messages or whatever it is are going to be seen,” he said. “If humans are part of the process for analysis that needs to be stated as well.”
Irish data-protection regulators say they’re seeking more details from Facebook to assess compliance with European data regulations. The agency’s statement says it’s also had “ongoing engagement with Google, Apple and Microsoft” over the issue, though Amazon wasn’t mentioned.
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