The actress, who is dating singer Gareth Gates, called in cops after hackers stole it from a phone and put it on one of the world’s largest adult sites.
Faye is seen dancing around before the camera switches to show her in a sex act with the naked man.
The two-minute video and private pictures were taken a few months ago.
But it is believed the tape was put online only recently.
A source said: “Faye is understandably devastated. Like any woman, she will be mortified that this footage is a few clicks away.
“It has somehow been accessed by someone who doesn’t care how much upset they cause.”
Faye and ex-Pop Idol runner-up Gareth, 33, met five years ago when starring in West End musical Legally Blonde.
Earlier this year her TV character shared a controversial kiss with married best pal Rana Nazir, played by Bhavna Limbachia.
Faye said: “I’ve never seen anything so racy on Coronation Street as when I watched back what we filmed that day.
“I’m very loyal to the older viewers, so I don't want to upset them, but I think we might have.
“I have never done anything like this in my life.
"I met my boyfriend when I had to kiss him on stage, but even that wasn’t as racy as what I had to do here.”
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