I’m a hacker-journalist, working at ProPublica. (On the side, I also take a lot of pictures.)

I spend most of my time working on using technology to support our investigative journalism — creating news applications, performing data analyses, and reporting on a variety of topics including healthcare data breaches, wasteful military spending, and cybersecurity.

I also do a bit of devops, managing parts of our web app infrastructure (wrangling lots of Amazon AWS bits), migrating our site to encrypted HTTPS-only, and providing a Tor hidden service to our readers.

Before joining ProPublica full-time, I was a Knight-Mozilla OpenNews Fellow.

I’m also very interested in cybersecurity, online privacy, data collection, and anonymity. In addition to my work at ProPublica, I'm a core contributor to the Tor Project, with a focus on mobile privacy software and onion service deployment — I'm the creator of Onion Browser for iPhone and iPad. I frequently speak at conferences and conduct workshops to teach people how to protect themselves online.

I also do a lot of work in the civic hacking space, especially around open data and open government issues. I'm a core developer of several open-source tools that help citizens use public data and help governments work more transparently.

Tabula, received a grant from the Knight Foundation and was a finalist for the 2014 Online News Association Award for Technical Innovation in the Service of Digital Journalism.

CivOmega (tongue-in-cheek for, "Wolfram Alpha for civic data") received a grant from the Sunlight Foundation.

In addition to investigative reporting and developing tools for readers and journalists alike, I like to share practical knowldege, by open-sourcing my work and training others. I was formerly an adjunct instructor at the New York University Studio 20 program, and I often participate in conference panels, talks, and workshops, teaching other professionals about threat modeling and encryption tools to keep their work safe, and about how to use various data analysis tools in their journalism work.

A small selection of projects and speaking engagements are listed below.

You can find a thorough list of reporting and news apps at ProPublica.

Many more open-source projects and snippets are at GitHub.

I don't have a LinkedIn account, and don’t want to join your professional network on LinkedIn.

Contact info


Click here to view my e-mail address.

  • Please note that I am notoriously bad at email these days, and I have limited time to devote to technical support regarding Onion Browser and my other open-source projects at this time.
  • You can encrypt your e-mails by using PGP. 0x6E0E9923 is my PGP key. Fingerprint: 4034 E60A A782 7C5D F21A 89AA A993 E715 6E0E 9923, verification information here.

Postal Mail:
I happily accept postcards, letters, and other analog ephemera via postal mail. Address your item to:

Mike Tigas
PO Box 426
New York, NY 10014-0426
United States

Selected Works

This sample represents a mix of both software and reporting projects. For a comprehensive list of work, check out my GitHub and my ProPublica staff page.

Talks, Panels, Sessions, Workshops

Events I've spoken at, taught at, or otherwise participated in: