Belief Defect emerged in the electronic music scene in 2017, deliberately choosing to keep their identities undisclosed to focus attention solely on their music and artistic expression. Their debut album, Decadent Yet Depraved, was released in late August 2017 on the Raster label, known for its experimental electronic releases. ​

The duo made their live debut at Berlin Atonal, a festival celebrated for showcasing avant-garde electronic music and visual arts. Their performance featured a live audiovisual set that expanded on confrontational sound and moving images, aligning with the festival\'s ethos of pushing artistic boundaries.

Following their debut, Belief Defect continued to perform live, including an audiovisual set at Gray Area in San Francisco in January 2020. This performance was part of their ongoing exploration of dynamic sound and immersive visual experiences, further establishing their reputation for innovative live shows.

Belief Defect\'s music is characterized by a fusion of techno and industrial elements, creating a sound that is both experimental and accessible. Their commitment to anonymity and focus on the sensory experience of their performances have distinguished them within the electronic music community.