marcotc (Marco Costa) | Keybase

marcotc

Marco Costa

Toronto

Chat with marcotcStart a chat
Your conversation will be end-to-end encrypted.

a mystery user with no key

marcotc.com dns

Chat with marcotcStart a chat
Your conversation will be end-to-end encrypted.

Following (0)

Followers (1)

cabello
Danilo Cabello

Browse others (15)

imkarthikk
Karthik K

justisengard
David Braxton

ashirama32
clark michason

yingchu
YingChuChen

sysacala
Sarah Yuzon-Sacala

ddelcourt

maahsoltanam

joshchapxr

cindypscl

abhishekprajapat
Abhishek Prajapati

shaolinshooter

nwtgck
Ryo Ota

jordan_ames
Jordan Ames

dino_reic

wuye
Ye Wu

What the heck is Keybase?

Keybase is an open source app

Keybase comes with everything you need to manage your identity, create secure chats, and share files privately. It's free.

It's fun too.

Over 100,000 people have joined Keybase so far to prove their identities, and it's growing rapidly.

Please send us feedback & bug reports.

Keybase, 2026 | read our blog
terms & privacy & security advisories & california ccpa & acceptable use