Policy groups ask Apple to drop plans to scan iMessages for child abuse

Signatories in nations as varied as India, Mexico, Germany fear tech to prevent spread of child sexual abuse material could be used for censorship.

More than 90 policy and rights groups around the world will publish an open letter on Thursday urging Apple to abandon plans for scanning children's messages for nudity and the phones of adults for images of child sex abuse.

"Though these capabilities are intended to protect children and to reduce the spread of child sexual abuse material, we are concerned that they will be used to censor protected speech, threaten the privacy and security of people around the world, and have disastrous consequences for many children," the groups wrote in the letter provided in advance to Reuters.

The largest campaign to date