Dropbox, Google and Microsoft’s consumer products scan for illegal images, but only when someone shares them, not when they are uploaded. The software, known as PhotoDNA, can use computers to recognise photos, even altered ones, and compare them against databases of known illegal images. Microsoft had long been at the forefront of combating abuse imagery, even creating the PhotoDNA detection tool a decade ago. Similar searches by the Times on DuckDuckGo and Yahoo, which use Bing results, also returned known abuse imagery. It has been 10 years since PhotoDNA was developed at Microsoft, yet the industry’s efforts to detect and remove known illegal photos remains uneven and cloaked in secrecy.

Source: bd News24 November 10, 2019 06:38 UTC