Starting with iOS 17, Siri can listen just for the word "Siri" as an activation trigger. For years prior, users had to say "Hey Siri" on an iPhone or iPad to get Siri's attention, but the "Hey" is no longer necessary.
How to Revert to "Hey Siri" as Siri's Only Trigger Word on Your iPhone
Apple now lets you trigger Siri by just saying "Siri," but it's more prone to accidental activations. So, here's how to go back to "Hey Siri."
