Should I be concerned..?

[Smallevil]

The incident I am about to disclose happened three or four years ago and unfortunately I have no information for the scammer. We met on Omegle where he introduced himself as a female. We chitchated for a while and I, then 18 years old, became affected by the anonymous. So when she asked me to move to Skype webcam I didn't hesitate and from then on you can guess what happened. The scammer didn't appear on cam at all, but tricked me into stripping. Once the stranger had what he needed, he threatened to upload the footage in Instagram and Snapchat. Quite luckily, throughout the whole chat I hasn't shared any personal details and the scammer didn't even know my real name.
I deactivated my facebook immediately, blocked the scanner's skype profile and lost all of his contacts..
Now, years later, this incident was brought back to my mind by a friend who suffered terrific damage from scam. Many years have passed; I haven't been blackmailed and I havent heard from this scammer ever again. My concern however remains; does he really possess the footage? At the time he did not play it back to me.
I may have public appearances in the future, so I fear I may come to be identifiable.. How likely is it that this footage emerges from somewhere in the web sometime in the future ..?

[SlapHappy]

My concern however remains; does he really possess the footage? After 4 years, not a chance in Hell.

At the time he did not play it back to me. That's because he did not record it at all, or save it, or you disconnected before he had a chance to loop it to you.

I may have public appearances in the future, so I fear I may come to be identifiable.. Ridiculous fear, as scammers do not chase victims for years, merely until you block them and close your own social accounts in the beginning of the scam.

How likely is it that this footage emerges from somewhere in the web sometime in the future ..? You have a better chance of an asteroid hitting you in the head, and you are the only one who gets killed.

How many of the 26-27,000 reports on our site did the scammer return after 3-4 years? ZERO. All your fear is self-generated in your own head.

[Smallevil]

So it is unlikely that he has posted it somewhere.. Or saved it...?

[firefly]

Please read again SlapHappy first answer above.