According to their About page,
The Electronic Frontier Foundation is the leading nonprofit organization defending civil liberties in the digital world. Founded in 1990, EFF champions user privacy, free expression, and innovation through impact litigation, policy analysis, grassroots activism, and technology development. EFF’s mission is to ensure that technology supports freedom, justice, and innovation for all people of the world.
Since 2018, the EFF logo combines a custom drawn monogram with the name spelled out in caps from League Gothic. For text on the website, the EEF uses a mix of Montserrat, Merriweather and Josefin Sans.