Rating:

Ok, let's see the `nc-lnvp` profile on Discord:

![](https://i.imgur.com/5ly13iS.png)

Of course that this is a hint, let's search about the E-mail on Github commits.

![](https://i.imgur.com/qE3JqaB.png)

Easy, `[email protected]`.

After some HOURS OSINTing this E-mail on Google, Github, DuckDuckGo and whatever E-mail/Gmail recon tool, we found this website: [tools.epieos](https://tools.epieos.com/email.php).
Basically this site is a compilation of Google Account recon tool, [Holehe](https://github.com/megadose/holehe), and LinkedIn linked E-mails.

![](https://i.imgur.com/kCSkkOV.png)

This is one of lot of solves about OSINT/Recon on Google E-mails. Google Accounts have some public information like GoogleID, E-mail, Contributions on Google Maps, Photos and Calendar, on this chall there is another way via Maps, as we can see on this comment:

![](https://i.imgur.com/dZ5SM0Z.png)

So...

Flag: `dam{pax_vallejo}`

Original writeup (https://kalinathalie.github.io/misc-challs-Imp3rs0nat0r-1-2-3-damctf2021/).