Did you get this email? Mostly your email associated Account, unfortunately, breached.
They want to scare you!
They didn't hack your account and they will not send you the video which you visited adult websites.
Don't worry too much,take a deep breath and RELAX!!!
THIS IS THE NORMAL AND ROUTINE METHOD TO GET YOUR MONEY AS A SCAMMER.
But,what you must do;
1)Change your associated email account password
- Activate 2 step verification.
3)To find out where your information may have been leaked or which breach may have been leaked your information go to https://haveibeenpwned.com/ and submit your email address.