The fix is enabled server-side, the "problem" was only identified after Amazon specifically checked into it, users who heard laughter and checked their own Alexa settings couldn't find anything that could have prompted the laughter.
No, you're (probably) not being haunted, it's just Amazon's Alexa voice assistant malfunctioning in a profoundly creepy way.
She informed that the company is also changing the response of the device to "Sure, I can laugh", followed by laughter from simply a laugh.
After hearing about the issue, others asked Alexa to laugh. One report past year estimated it had 16 million subscribers, which would slide it into third place behind Spotify and Apple, but Amazon hasn't confirmed that number. "Users of smart speakers with Alexa assistant software have comically expressed their fears in recent weeks on Twitter, even posting video snippets of speakers infused with the software laughing menacingly for no apparent reason". The retailer said in an email that the laughs only happened "in rare circumstances" because the speaker was reacting to a "false positive" for the command "Alexa, laugh". "I'd rather it laugh at me tbh".
"We got home and, totally unprompted, our Amazon Echo/Alexa started talking". Some of the suggestions to remove this defect include removing the phrase "Alexa laugh" and maybe replacing it with a question, "Alexa, can you laugh?".
Amazon will change the command for laughter to "Alexa, can you laugh?" and disable the shorter command.
According to an Amazon spokesperson, several customers have been complaining about their Amazon Alexa laughing like insane even though nobody uttered a word in front of over.