There is a way to delete the anonymized Siri recordings that Apple may have on file for you, but there are some consequences for doing so.
We’ve spoken with Apple this morning, and confirmed that you can delete what Apple may have on file for you in regards to Siri recordings. However, we were also told that since the numbers of retained recordings for quality assurance purposes are so low, the odds are that you don’t have any retained data. Here’s how to do it.
Read more at AppleInsider.com