What is how long does walmart keep security footage?

As an AI language model, I do not have access to specific information on how long Walmart keeps their security footage as it may vary by location and specific policies. However, it is common for retail stores to hold onto footage for a period of weeks or months, depending on the nature of the recordings and local regulations. It is also worth noting that security footage may only be accessed under certain circumstances, such as investigations into theft or misconduct, and may require a court order or subpoena.