possible case of extortion from a researcher?

[pejadesign]

Monday one of my site was under an attack of an hacker.
Yesterday I received an e-mail from a person that I could find as a open bug bounty researcher. My site is not in the open bug bounty list of sites to test.
This person have said to me that he found critical bugs. I reply to him and I asked for more information via mail.
Today he replys that firstly he want to discuss about one payment.
In my opinion this is an extortion. I have not ask for this service.
how I should behave?
thaks in advance.

[x1admin]

Monday one of my site was under an attack of an hacker.
Yesterday I received an e-mail from a person that I could find as a open bug bounty researcher. My site is not in the open bug bounty list of sites to test.
This person have said to me that he found critical bugs. I reply to him and I asked for more information via mail.
Today he replys that firstly he want to discuss about one payment.
In my opinion this is an extortion. I have not ask for this service.
how I should behave?
thaks in advance.

Please provide researcher nickname

[secuninja]

yeah... that probably the worst thing one can do... making the community look like assholes.