Siri, who is proficient at stone walling curious Apple fans quizzing it about new products and upcoming events, prematurely seemed to have revealed the plan to hold an event next Tuesday.
The world's largest online retailer has worked for years to popularize speakers, televisions and other devices that customers activate through speech
The researchers noted it was possible to make microphones respond to light as if it were sound, which essentially means that anything that acts on sound commands will act on light commands
Siri allows users to work their iPhone without using their hands, and can send messages, make calls and open multiple applications with voice commands alone
Users need to find a balance in the trade off between convenience and loss of privacy
The Cupertino-based company is widely viewed as lagging its rivals in key areas of artificial intelligence.
Siri's behaviour becomes a privacy issue because it can read out messages and emails from third-party apps such as Facebook Messenger, WhatsApp, and Gmail
Shift in Siri's leadership comes as Apple faces competition to get users speaking to its devices
Developers will keep an eye out for hints about new capabilities in the next iPhone