What followed was a short, panicked flurry of non-denials and non-confirmations, and a promise from me that I wouldn't do or say a thing.
That was months ago. About two weeks ago, after the confusion over the Verge video, Bennett reached out to me. She was ready to speak as herself and set the record straight.
'My career as a machine'
As a child, Bennett's favorite toy was a play phone-operator system, a big red block with a receiver and lines she could patch in to help imaginary callers make their connections.
Years later, while singing jingles, she was tapped to be the radio and TV voice of First National Bank's "Tillie the All-Time Teller," the first ATM machine. Though that was about 40 years ago, she can -- and does -- still break seamlessly into the high-pitched song.
"I began my career as a machine many years ago," Bennett said. "I'm sure that you hear my voice at some point every day."
But the way she is heard was a surprise even to her.
Music and singing had always been a part of Bennett's life. At Brown University, she sang in a jazz band and also with another group at the Berklee School of Music. After graduating, she toured as a backup singer with Burt Bacharach and Roy Orbison. Today, she and husband Rick Hinkle -- a guitarist, composer and sound engineer -- still play in a band, mostly at private events.
She fell into voiceover work by chance in the 1970s when she walked into Atlanta's Doppler Studios for a jingle job and the voiceover talent was a no-show. The studio owner looked around and said, "Susan, come over here. You don't have an accent. Go ahead and read this."
She did, and a new career path was born.
Bennett wasn't always accent-free, though. She was born in Vermont and grew up all over New England. Her voice -- dropped Rs and all -- was "SNL"-skit ready. Can she imagine Siri as a New Englander? "Neva! Neva!"
A stint in upstate New York helped her lose the accent. By the time she arrived in Atlanta in 1972, with her first husband, former NHL player Curt Bennett of the Atlanta Flames, she was ready to fight off the Southern twang. She fell in love with Atlanta and, after that marriage ended, stayed.
Even though her voice can be heard everywhere, she's enjoyed being out of the spotlight.
"You have a certain anonymity which can be very advantageous," she said. "People don't judge you by how you look ... That's been kind of freeing in a lot of ways."
'Part of history'
Bennett works in a sound-proof recording booth in her home, a tin of lozenges at the ready. Her voice is transmitted to the world, while she -- if she so chooses -- sits in her jammies, or more likely her Zumba clothes. Auditions are done by e-mail. She can grocery shop and go unrecognized.
It's not as though her natural speaking voice, heard out of context in the produce aisle, sparks reactions.
So the idea of coming out as the voice of Siri was one she pushed aside. It probably wouldn't have even occurred to her if not for the goading of others, including her 36-year-old son -- whom she, and he, jokingly refers to as "Son of Siri."
"Her voice has been everywhere throughout my life. I'd call my bank while I was in college in Colorado, and it was my mom telling me I had $4," said Cameron Bennett, a photographer in Los Angeles.
He first found out she was the voice of Siri while watching an iPhone 4S commercial on TV. There, on the screen, was director Martin Scorsese talking to his mother. When Cameron bought the phone himself, she began barking at him through its GPS feature, prompting him to yell, "Mom, stop!"
"She's part of history," he said. "It was funny trying to explain to her how big it was. She uses her cell phone for 8% of what it can do."
When Bennett upgraded her phone and first talked to ... well, herself, she says she was a little horrified. It was weird, to say the least. But she was blown away, she said, to play a part in such a technological feat.
Being the voice of Siri, though, doesn't mean she's immune to the sorts of frustrations others sometimes have with the technology.
"But I never yell at her -- very bad karma," Bennett said. That said, she knows not everyone is as gracious: "Yes, I worry about how many times I get cursed every day."
Now, though, with iOS 7 she is passing the telephonic torch to a new Siri. Bennett would be lying if she said she wasn't a bit disappointed, but in her field of work she's learned to expect evolution -- and even revolution.