Known as end-to-end (E2E) encryption, the technology is used in messaging applications to protect privacy and bolster security. While WhatsApp has since shuttered the 'Kids boy gay' chatroom, the FT reportedly found that several groups were still 'extremely active'-protected in part by the app's tight-knit encryption, which shields the content of user messages even from the company itself. The groups said initial requests for meetings with the local head of policy and communications at Facebook's Israel office, Jordana Cutler, went unanswered. The finding comes after two Israeli charities-Netivei Rishet and Screensaverz-warned Facebook about the spread of the material in September, the FT reported. Read more: Space agency NASA warns data potentially stolen in breach Participants inside the group were reportedly requesting 'cp videos,' referring to child abuse material. The Financial Times newspaper reported Thursday that one group chat recently active, titled 'Kids boy gay,' contained more than 250 members-some from the U.S. Facebook-owned messaging application WhatsApp has been accused of failing to adequately combat the sharing of child sex abuse material on its platform.