I was covered in a portuguese article for Tek Sapo about my bug bounty activities, specially at Cobalt.io.
If you know portuguese language feel free to take a look: http://tek.sapo.pt/expert/artigo/ha_um_portugues_no_top_de_um_dos_maiores_programas_de_caca_ao_bug-43785gpm.html
Or else translate it at Google.