The section specifically responding to the rumors reads:
Apple has never used Siri data to create marketing profiles, has never made it available for advertising, and has never sold it to anyone for any purpose. We're constantly developing technologies to make Siri even more personal, and will continue to do so.
after tthat of the guardian Report in 2019, Apple apologized and changed its policyMaking it the default setting of not retaining audio recordings from Siri interactions and saying that users who choose to share recordings, those recordings will not be shared with third-party contractors.
However, reports about the agreement say In previous such filings from 2021Some plaintiffs claimed that when they mentioned brand names such as “Olive Garden,” “Easton Bats,” “Pitt Viper Sunglasses,” and “Air Jordan” they were served advertisements for related products, for which they Attributed to Siri data.
Apple's statement tonight said it “does not retain audio recordings of Siri interactions unless users explicitly opt in to help improve Siri, and even then, the recordings Used only for that purpose. Users can easily opt-out at any time.”
Facebook responded on similar principles in 2014 And 2016 before mark zuckerberg addressed it directlyWhen questioned by Congress in 2018 on the Cambridge Analytica scandal, he answered “no” to the question.
So, if Apple (and Facebook, Google, etc.) is telling the truth, why would you later see an ad for the thing you only talked about?
There are other explanations, and efforts to investigate the rumors include An investigation in 2018 It did not find evidence of microphone spying, but did find that some apps secretly recorded on-screen user activity that they sent to third parties.