This one is new. I found only two other mentions of similar things, at Reddit.
It looks like an introductory email towards some kind of possible scam, related to vulnerability finding / bug bounty.
It was sent to the privacy email of this blog.

Subject:
Uncovering Security Vulnerabilities in Your Application

From:
Robert Davis <[email protected]>

Body:
Hello,

I trust you’re well.

I’ve identified potential security issues in your application, aiming to ensure user safety. These vulnerabilities could impact functionality and compromise user security. I’d appreciate a suitable channel to share more details, facilitating a prompt review and resolution by your team.

If you have a Bug Bounty program, kindly provide information. If not, consider my commitment to enhancing digital platform security.

Looking forward to your response.

Best Regards,

Robert Davis