[2] With fellow journalist Gustavo Gorriti, in 2009 she collaborated on the book Petroaudios, which covered a significant case of political corruption.

[4] In the 2010s, Ugaz worked on the Chalina de la Esperanza initiative, which sought to honor victims of the Peruvian conflict.

[2][6] Along with her colleague Pedro Salinas, Ugaz launched an investigation into alleged cases of sexual, physical, and psychological abuse of young boys committed under the auspices of Sodalitium Christianae Vitae, also known in Spanish as Sodalicio de Vida Cristiana, a society of apostolic life founded in Peru in 1971 by Luis Fernando Figari.

[8] In response to her journalistic work, Ugaz has been the victim of a disinformation and defamation campaign, including digital attacks, death threats, and legal battles.

[7][8] She was also targeted with legal cases brought by real estate manager Alberto Gómez de la Torre, whose company allegedly had ties with Sodalitium.