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Watch your language, please, because PayPal may be listening a little more closely next time you yell at its customer service robots.
The company is seeking to patent a method for user enrollment in "voice biometric authentication." Here's how it works: If a user calls into PayPal's customer service line and talks with (or yelps at) the "interactive voice response" instead of a live agent, this system will "non-intrusively collect voice data for a user" through high quality recordings of a users' conversations.
Source Fool.com