Alexa keeps a record of what it hears every time an Echo speaker activates. It's supposed to record only with a wake word Alexa! but anyone with one of these devices knows they go rogue. ... (Amazon says it has improved the accuracy of Alexa as a wake word by 50 percent over the past year.)
Update: Amazon said the odd behavior is the result of Alexa mistakenly hearing "Alexa, laugh." It's disabling that command and will require "Alexa, can you laug... more