The combined situation

Reface is the largest face swap mobile application by downloads, with hundreds of millions of installs. It is marketed for entertainment use but the technology is identical to that used in deepfake NCII production. When Reface output appears on Tumblr, removal proceeds through the statutory takedown process under 47 USC 223a combined with source attribution to strengthen the legal claim.

Why this combination is high risk

Reface is broadly considered a low risk service due to active content moderation, but its model architecture has been replicated in higher risk derivative services. On Tumblr specifically, tumblr reblogs create persistent copies of content across hundreds of unrelated blogs. a single original post can have thousands of reblogs, each requiring a separate url in the takedown notice.

How removal proceeds

Tumblr accepts NCII reports through its content removal form and through its DMCA agent. The platform's 2018 adult content ban remains in effect, which means NCII reports also benefit from policy enforcement against any sexual content. Source attribution to Reface is documented through reface outputs display a characteristic logo watermark in the free tier and use a recognizable temporal smoothing algorithm in video output, which strengthens the takedown notice and supports parallel legal action.