Internet Watch Foundation (IWF), a Britain charitable foundation, introduced a technology to enable tags in images and videos of child sexual abuse with distinct hashes that act as special codes. In a recent, Facebook, Google, Twitter, Yahoo and Microsoft decided to implement the technology by IWF to detect and block images on child pornography online.
Essentially, how this works is, that once a particular image is tagged for child sexual abuse, it will automatically be easier to be distinguished from the other existing media online, and therefore easier to be blocked and reported.
And in case someone attempts to re-upload the images, the system will scan the hash that was previously tagged in its code, and refrain it to be uploaded, and therefore, shared.
These special hashes have only been shared with these five tech companies by IWF as yet, however it intends to roll out to others soon.
