In August 2021, when the Taliban took over Kabul and home searches became ubiquitous, women started to delete anything they thought could get them in trouble. Books were burned, qualifications were shredded, laptops were smashed. But for 21 members of a women’s creative writing group, a lifeline remained: their WhatsApp group. Over the next year they would use this forum to share news with one another (a story that has since been chronicled in the recently published book My Dear Kabul). Doing so through WhatsApp was not incidental. Instead the app’s use of end-to-end-encryption provided a strong level of protection. The only way the Taliban would know what they were saying was if they found their phones, seized them, forced them to hand over passwords and went into their accounts. They could not otherwise read their messages.
End-to-end encryption is not sexy. Nor do those four words sound especially interesting. It’s easy to switch off when a conversation about it starts. But as this anecdote shows it’s vitally important. Another story we recently heard, also from Afghanistan: a man hid from the Taliban in a cave and used WhatsApp to call for help. Through it, safe passage to Pakistan was arranged.
It’s not just in Afghanistan where end-to-end encryption is essential. At Index we wouldn’t be able to do our work without it. We use encrypted apps to message between our UK-based staff and to keep in touch with our network of correspondents around the world, from Iran to Hong Kong. We use it to keep ourselves safe and we use it to keep others safe. Our responsibility for them is made manifest by our commitment to keep our communication and their data secure.
Beyond these safety concerns we know end-to-end encryption is important for other reasons: It’s important because we share many personal details online, from who we are dating and who we vote for to when our passport expires, what our bank details are and even our online passwords. In the wrong hands these details are very damaging. It’s important too because privacy is essential both in its own right and as a guarantor of our other fundamental freedoms. Our online messages shouldn’t be open to all, much as our phone lines shouldn’t be tapped. Human rights defenders, journalists, activists and MPs message via platforms like Signal and WhatsApp for their work, as do people more broadly who are unsettled by the principle of not having privacy.
Fortunately, today accessible, affordable and easy-to-use encryption is everywhere. The problem is its future looks uncertain.
Last October, the Online Safety Act was passed in the UK, a sprawling piece of legislation that puts the onus on social media firms and search engines to protect children from harmful content online. It’s due to come into force in the second half of 2025. In it, Section 121 gives Ofcom powers to require technology companies to “use accredited technology” that could undermine encryption. At the time of the Act’s passage, the government made assurances this would not happen but comments from senior political figures like Sadiq Khan, who believe amendments to the acts are needed, have done little to reassure people.
It’s not just UK politicians who are calling for a “back door”.
“Until recently, traditional phone tapping gave us information about serious crime and terrorism. Today, people use Telegram, WhatsApp, Signal, Facebook, etc. (…) These are encrypted messaging systems (…) We need to be able to negotiate what you call a ‘back door’ with these companies. We need to be able to say, ‘Mr. Whatsapp, Mr. Telegram, I suspect that Mr. X may be about to do something, give me his conversations,’” said French Interior Minister Gérald Darmanin last year.
Over the last few years police across Europe, led by French, Belgium and Dutch forces, have breached the encryption of users on Sky ECC and EncroChat too. Many criminals were arrested on the back of these hacking operations, which were hailed a success by law enforcement. That may be the case. It’s just that people who were not involved in any criminal activity would also have had their messages intercepted. While on those occasions public outcry was muted, it won’t be if more commonly used tools such as WhatsApp or Signal are made vulnerable.
Back to the UK, if encryption is broken it would be a disaster. Not only would companies like Signal leave our shores, other nations would likely follow suit.
For this reason we’re pleased to announce the launch of a new Index campaign highlighting why encryption is crucial. WhatsApp, the messaging app, have kindly given us a grant to support the work. As with any grant, the grantee has no influence over our policy positions or our work (and we will continue to report critically on Meta, WhatsApp’s parent company, as we would any other entity).
We’re excited to get stuck into the work. We’ll be talking to MPs, lawyers, people at Ofcom and others both inside and outside the UK. With a new raft of MPs here and with conversations about social media very much in the spotlight everywhere it’s a crucial moment to make the case for encryption loud and clear, both publicly and, if we so chose, in a private, encrypted forum.
