Where is security access key?

Hello, @angeljs

You can find the access key for Security plugin in your Securiy Dashboard here:
https://cleantalk.org/my?cp_mode=security

If you have more questions, please, contact us via our support system:
https://cleantalk.org/my/support/open

WordPess.org Support Forum is for plugins only, not the service.

Thank you.

@angeljs,

Yes, you are correct.