In 2019, Burger King launched an advertising campaign that allowed customers to place orders for its products through voice assistants such as Amazon Alexa and Google Assistant. However, the campaign quickly backfired when it was discovered that the voice assistants could be easily tricked into placing orders for free food.

The flaw in the campaign lay in the fact that the voice assistants were not able to distinguish between genuine orders and prank orders. This allowed users to place orders for food items such as "a large fries" or "a whopper with no pickles" without actually having to pay for them.

The campaign was quickly pulled after it was discovered how easily it could be exploited. Burger King issued a statement apologizing for the inconvenience and promised to improve its security measures.

The Burger King campaign revealed the potential dangers of relying on voice assistants to make purchases. While voice assistants can be convenient, they are not always secure. This is because they can be easily fooled by hackers or pranksters.

In order to protect yourself when using voice assistants, you should take the following precautions:

* Only use voice assistants to make purchases from trusted sources.

* Be careful about what information you share with voice assistants.

* Do not use voice assistants to store sensitive information, such as passwords or credit card numbers.

* If you are concerned about the security of your voice assistant, you can disable it or turn off the voice activation feature.