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What is encryption and how does it impact children’s online safety?

Internet Matters Team | 17th August, 2020
Encryption graphic

With talk of end-to-end encryption becoming more prevalent, it’s important to understand what it means. How does it impact children’s online safety? What are the concerns around encryption?

Summary

What is end-to-end encryption or encrypted messages?

Encryption is a process where digital data is “translated” using an algorithm that makes the original information unreadable. End-to-end encrypted messages ensure only you and the person you’re communicating with can read what’s sent – nobody in between. In other words, encrypted messages prevent anyone from viewing your conversations who isn’t in the conversation.

When messages are unencrypted, they can be monitored by someone else. This monitoring could happen for a number of reasons including platforms investigating abuse allegations.

How does it work?

Each message that is sent is secured with a virtual “lock” and only the receiver and sender have the special “keys” or permissions to unlock it and read the message. This already happens automatically on a range of apps and platforms.

Currently, the most popular apps that use end-to-end encryption are WhatsAppTelegram and Apple’s iMessage and FaceTimeFacebook Messenger offers you an option to turn encryption on in the form of Secret Conversations.

Is every message I send and receive via phone encrypted?

No. Popular apps like the ones above offer encryption and so do some lesser-known apps. People may choose an app specifically because of its encryption capabilities.

The debate in favour of end-to-end encryption

Meta, formerly Facebook, has notably come out in favour of end-to-end encryption, or E2EE, for all of its messaging products. Head of Policy Management at Facebook, Monika Bickert, said, “We want to make sure that we are providing an experience that keeps people safe, especially for the crimes that are most at home, and most serious to them.” If messages and attachments are sent and received using E2EE, they cannot be viewed by anyone outside of the message. This means images and content in these messages cannot be accessed by outside parties and shared or abused.

The Information Commissioner’s Office (ICO) has also come out in support of end-to-end encryption. “It strengthens children’s online safety by not allowing criminals and abusers to send them harmful content or access their pictures or location,” says ICO’s executive director for innovation and technology, Stephen Bonner. ICO believes that delaying the encryption of these messaging apps leaves everyone at risk.

The debate against end-to-end encryption

Other organisations have come out against E2EE. Police and other child safety advocates worry that encryption creates a digital hiding place for sexual predators. If they can hide behind encrypted messaging, it is argued, they could share sexual abuse images with other predators and go unnoticed.

A campaign funded by the Home Office and supported by abuse survivors also warns that strong encryption prevents law enforcement from taking action against online abusers. While charities like the NSPCC agree that E2EE has its merits, more needs to be done to ensure that platforms “balance the privacy and safety requirements of all users, including young people.” The campaign, No Place to Hide, is a call to ensure that companies do not offer E2EE until changes are made to make sure children aren’t left vulnerable to sexual abuse online.

Steps to keep children safe online

Whatever the opinion on E2EE, all organisations agree that children and young people’s safety is their priority. Encryption isn’t the only safety tool available. Here are some actions you can take to keep your child safe online:

Supporting resources

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The first step to ensure your child’s online safety is getting the right guidance. We’ve made it easy with ‘My Family’s Digital Toolkit.’