Microsoft launches a free, cloud-based version of its PhotoDNA service for spotting child porn

Microsoft today announced that companies can now use a new cloud-based version of its PhotoDNA service for identifying child abuse images — free of charge.

The tech giant first came out with PhotoDNA in 2009, but companies could only run it in their own on-premises data centers. Now it’s running on top of Microsoft’s public cloud. The service checks images against a data set from the National Center for Missing & Exploited Children.

Messaging app Kik is using the new cloud service, Microsoft said in a statement on the news. In the past, Facebook and Twitter have used PhotoDNA.