I'm pretty sure he knows who it is if he also knows the agency she works with.  If it were me, I'd want to know.  If I already knew and was okay with, then no-harm-no-fowl.  

Your logic here is a little off IMHO.

With all of the Celebrity Sex Tapes out there, with all the scandals of sexy pictures over Twitter and Facebook. why would anyone engaged in any sexual activity think that a camera in the room means anything less than World Wide Web exposure? Why doesn't everyone presume, perhaps wrongly, that a camera in the room means you're consenting to seeing yourself on some random free video porn site spreading malware?

I've seen a number of customers in my personal business, particularly females, who have had to live with the shame of an alcohol coerced BJ (gangbang, etc.) video sent through school/college/work. hey, we were all young and dumb once, right? I know for certain that the providers I've seen are aware of this consequence, and when they say discrete - they are aware of all of what that entails.

Inform her if you wish, but if she's a pro like you say, then I think you're wasting your efforts.

my 2 cents

There is nothing "coercive" about alcohol. It merely reduces one's ability to think clearly and reduces inhibitions to a certain extent. As for being "young and dumb", people reap what they sow.

I came across a video of a well reviewed provider that works for an agency depicting one of her "appoinments"; it was obvious she knew she was being filmed.  I have not seen her personally; nor have I dealt with her agency.  It seems to me that this could be a breech of trust between her and a client and I am compelled to at least let her know about it. My question is: is this any of my business? Do I let her know(if so, how)? Is it expected that if you allow filming, that it will end up on the internet?

I WILL NOT be providing a link, nor will I be naming the lady in question, please don't ask.

So, you feel that "any" time you happen to run across a pic or video on the web that might depict somebody you think you know, that somehow it's your duty to locate the person, contact him/her, so you can reveal that you saw it.  What is there about what you saw that makes you think it's any of your business or that it is on the web without his/her permission?  

There are literally hundreds of thousands of "amateur" porn vids on the web.  Hell, I've probably seen a hundred or more where the participants are people I know from their photos on this site and others.  Following your lead, do you think it's your duty to call every one of them too.

Just saying....

It's a common request for Gent's to ask to film or take pictures during a session and some providers are very ok with it.  In fact, it may have been done by her agency as a promo video.  I would definitely tell them but I have a feeling everyone involved is probably very aware.  Thanks for caring enough to get involved.  e

I agree, please tell the agency, so that way we can all be notified and take caution of people who do things life this..
Just recently I was a victim of a client trying to record me. I confronted him, he treatened to black mail me. He was  banned from ever coming from our agency. And from this site.
Its scary, we use complete discression with our clients. Protect their lives ect.. But who protects us..
So yes tell some one...

What is the harm in his alerting the subject of this video? Do YOU have something to worry about with regards to this issue?

All the responses thus far assume the client was aware of the video or was the person initiating the video.  But in rereading the OP, it isn't that clear.  

If the gentleman client wasn't aware that he was being filmed and the lady was, that is an entirely different question - both the Agency and lady should be exposed.

However, if he was aware (or initiated the video) and she was also aware (as you do indicate), the fact it ended up on the internet should be expected, even if there were promises keep it private.  Anyone that is stupid enough to be filmed in a P4P session should be at least smart enough to realize that it may not remain private and that is the risk they take.

......er I meant 'no-foul'.  oops.

Your insinuation is unwarranted and frankly out of line.  But alas, it is typical... never anything posted by you that isn't couched in sarcasm... I know, must by your upbringing... LOL

It never ceases to amaze me how some folks just can't seem to keep their nose out of everyone elses business.  So he saw a video and decided, oh my, I better go tell somebody... WTF.  As someone else said, if he thinks his destiny is to be the "saintly" then just send the girl a note.  But alas, no, it's gotta be a thread on the board... And, we've got others who think it's their destinity to be the personal trainer for newbie girls, and then we of course have the typical folks who feel it's their destinity to tell others how to act in the hobby, what pictures to post, what themes to present, ad vomita...  Ya, maybe I'm one of these too because I'm writing this.... guilty....  but it just makes me have to sit back and laugh at all the experts who think they know and must tell everyone else how to conduct their hobby activities.

Why can't folks just deal with the hobby in their own way and stop presenting themselves like they've been appointed by the gods as the master of the hobby.

Thanks for the nice long-winded answer and attempts of obfuscation. You still did NOT answer the question. Namely, what's the harm in alerting the subject of the video? YOU don't have anything to worry about, do you?

Nosy little devil aren't you.... LOL .... of course not .... never posted any pic/vid on the web, not even U tube.

Not nosy, but the "Devil IS in the details". Just trying to understand why you are against alerting the working girl in question when there is no harm in doing so.

Do not disagree with your opinion, but like the new word.

Theme day pictures about how sweet and good a provider can be vs some of their naughtiest or nastinest fantasies?

Not sure where this reply fits in your categories?  Probably sarcastic huh?  Lol

I don't either, but I like it... LOL .... Now if I could just get you to think like I do it would be a better hobby world.... LMAO

I agree that perhaps "coerced" was not the best word, but how often do we hear "I was Soooooo Drunk" as an excuse by males and females alike?
Me? I learned my limits and try not to push them. I was also "a pass out, got A$$HOLE written on my face in permanent marker after my so-called friends shaved just one leg and hid my truck around the block" type of drunk.  
Young and Dumb, my friend, but back then it was more of the "Alcohol made me do it" denial BS.