Our Team


Natalie Cadranel
Founder and Director

Natalie is an archivist and ethnographer working at the nexus of human rights, design, and technology. She aims to protect and amplify community media by helping organizations better manage, protect, and preserve documentation they create and receive. She consults with human rights-focused organizations worldwide and was a 2019 fellow at Stanford's Digital Civil Society Lab. For the last decade, she shaped initiatives dedicated to improving access to information for social and environmental justice organizations. She holds a Masters from the UC Berkeley School of Information and a Bachelors in International Relations from UC Davis.

Nathan Freitas
Lead Developer

Nathan is the Executive Director of Guardian Project and a Research Fellow at the Berkman Klein Center.

Mathana Stender
Community Manager

Mathana is a Berlin-based tech ethicist, rights advocate and storyteller who investigates the impact of emerging technologies on individuals, communities and culture. Mathana is a member of IEEE working groups that create technical standards and best practises around algorithmic bias and virtual reality, and contributes technical expertise to international disarmament initiatives. They are a Fellow at the Centre for Internet and Human Rights (attached to the European University Viadrina), and hold degrees from the University of Texas at Dallas and the Chinese University of Hong Kong.

Benjamin Erhart

Benjamin fell in love with computers when he was a teenager and still is today after over 20 years. His passion is to create tangible software for end users, breathing life into designer's visions. He’s happiest when some healthy technical challenges and a higher purpose are stirred into the mix. Currently, he feels most at home developing mobile platforms, but has a long history in web tech, and a knack for security-related topics, which makes him well-suited for this era. He is self-employed and works out of his office in Salzburg, Austria. Find him here.

User Experience Design

Okthanks works closely with communities and developers to bring privacy-enhancing technologies to everyday people. A user experience design team, they are passionate about making things simple to use and understand. Carrie Winfrey, Tiffany Robertson and Kaci Bartlett work from their cozy office in Lubbock, Texas. Learn more at Okthanks.


Harlo Holmes

Harlo is the Director of Newsroom Digital Security at Freedom of the Press Foundation. She strives to help individual journalists in various media organizations become confident and effective in securing their communications within their newsrooms, with their sources, and with the public at large. She is a media scholar, software programmer, and activist; and contributes regularly to the open source mobile security collective The Guardian Project.

Micah Lee

Micah Lee is a computer security engineer and an open-source software developer at The Intercept. He writes about technical topics like digital and operational security, encryption tools, whistleblowing, and hacking using language that everyone can understand without dumbing it down. An avid user of Qubes and Linux, he develops security tools such as OnionShare. Before joining The Intercept, he worked as a staff technologist at the Electronic Frontier Foundation, where he explained how technologies work to journalists and lawyers, and worked to encrypt the web. He is also a founder and board member of the Freedom of the Press Foundation.

Nicole Martin

Nicole Martin is the Senior Manager of Archives and Digital Systems at Human Rights Watch, where she established the organization's first digital archive. She holds a master’s degree in Moving Image Archiving and Preservation from New York University, and teaches Digital Preservation as an adjunct professor in the same program. Nicole has worked with several nonprofit community media organizations, including Democracy Now!, The Lesbian Herstory Archives, and Deep Dish Television. She received an undergraduate degree in Film and Digital Media from the University of California, Santa Cruz, where she studied early interactive web design, electronic music, and queer film theory.

Beatrice Martini

Beatrice is the Education Coordinator for the Access Now Digital Security Helpline. Previously, she led the Human Rights Technology program at Aspiration and worked at the Open Knowledge Foundation and on several projects leveraging open source technology in support of justice and rights endeavors. She is also a research fellow at the Harvard Kennedy School, where she explores the implications of Internet infrastructure design on human rights, and serves in a formal advisory role with the Center for Tech Cultivation. Further information about her projects are available at beatricemartini.it.

Yvonne Ng

Yvonne is the Archives Program Manager at WITNESS, where she trains and supports partners on collecting, managing, and preserving video documentation for human rights advocacy and evidence. She develops training resources related to archiving and preservation, such as the groundbreaking Activists’ Guide to Archiving Video. Before joining WITNESS in 2009, Yvonne worked as a Research Fellow on the Preserving Digital Public Television Project, and at NYU Libraries, New York Public Library, and the Canadian Filmmakers’ Distribution Centre. Yvonne holds an MA in Moving Image Archiving and Preservation from New York University, where she has also taught a course on Personal Digital Archiving. She holds a BA in Cinema Studies from the University of Toronto.

Cooper Quintin

Cooper is a security researcher and Senior Staff Technologist at the Electronic Frontier Foundation. He has worked on projects such as Privacy Badger, Canary Watch, and analysis of state sponsored malware. He has also performed security trainings for activists, non profit workers and ordinary folks around the world. He previously worked building websites for non-profits, such as Greenpeace, Adbusters, and the Chelsea Manning Support Network. He also was a co-founder of the Hackbloc hacktivist collective. In his spare time he enjoys playing music and participating in street protests.

Teague Schneiter

Teague serves as the Sr. Manager of the Academy of Motion Picture Arts and Sciences’ Oral History Projects department, where she is responsible for new video productions and the acquisition of a collection of over 2,000 legacy interviews with filmmakers (1948-present). As the initiative’s founder, she has been responsible for strategic planning; developing born digital video production, research, description, metadata and access practices specific to oral history; collection development; digital preservation planning; curatorial projects; cross-institutional initiatives; and outreach. She has been involved in multiple grants projects, including co-developing an oral history project dedicated to documenting the stories of Latina/o/x and Latin American filmmakers which resulted in a richly searchable multilingual website using OHMS for the Getty’s 2017 PST:LA/LA cultural festival.

Teague is a graduate of the University of Amsterdam’s moving image preservation program, and worked in the early part of her career with oral history, human rights and other cultural heritage materials in Australia, the Netherlands, Canada, and the United States with organizations such as WITNESS and IsumaTV. Since November 2016, Teague has served on the Board of AMIA, served as Vice President, and co-founded: AMIA’s CEA Task Force, ADIFP Fellowship Task Force, Advocacy Committee of the Board, and Oral History Committee. She is an active member of the Oral History Association’s Archives Interest Group and founder of a best practices collective with the craft guilds called the MICD Alliance. She proudly serves on the board of OpenArchive.

Tara Vassefi

Tara is a lawyer who has spent her career learning from human rights defenders, journalists, archivists, and technologists about methods and approaches to optimizing the use of digital evidence for legal accountability and advocacy measures. She began this work at the War Crimes Research Office, in the aftermath of the 2011 Arab Uprisings when no court had substantively weighed the evidentiary value of a YouTube video or Facebook post. After law school, she worked with WITNESS, a human rights documentation organization, focusing on Video as Evidence in the Middle East and North Africa. Following this foundational understanding of localized approaches to optimizing digital evidence, she expanded her work to include other innovative solutions and how they might be mindfully leveraged for human rights accountability, from blockchain to open source investigations to Computer Vision. While at UC Berkeley Law Schools Human Rights Center - Investigations Lab, she became particularly interested in authentication solutions and was later brought on as the Legal Scholar and Washington Director of Strategic Initiatives for Truepic, a tech startup specializing in digital image authentication. Having since left that position with Truepic, she joins OpenArchive's Board to work closely with our partners on the ground and help support our mission.