Nothing's iMessage for Android app is unbelievably bad 1
The Nothing Chats splash page in the app.
Andy Boxall / Pro Well Tech

Earlier this week, Nothing did the unexpected and launched the “Nothing Chats” app for the Nothing Phone 2. The premise? Let anyone with a Nothing Phone 2 send and receive texts via iMessage. Nothing partnered with Sunbird to make Nothing Chats work, with Nothing essentially using Sunbird’s own messaging tech to bring iMessage to Android.

It was a bold idea … but one that was short-lived. That’s because Nothing Chats is already dead (for the time being) due to a shocking number of security vulnerabilities that were discovered almost immediately. And by security vulnerabilities, we don’t mean minor oversights that could have been easy to overlook. We’re talking about major, game-breaking design flaws that massively compromise the personal information of anyone who used Nothing Chats.

The problem with Nothing Chats

Nothing Chats on a Nothing Phone 2 compared with iMessage on an iPhone 15 Pro Max.
iMessage on an iPhone 15 Pro Max (left) and Nothing Chats on a Nothing Phone 2 Andy Boxall / Pro Well Tech

Nothing Chats launched in beta access on November 17, and within hours of people getting their hands on the app, worrying security concerns started popping up. One of the first reports came from Kishan Bagaria, the founder of Bagaria and their team discovered that messages sent via Nothing Chats weren’t using HTTPS security credentials. Instead, messages were being sent on the much less secure HTTP standard in plain text.

But it wasn’t just Bagaria who discovered these vulnerabilities. Wukko on X (formerly Twitter) also confirmed that anything sent via Nothing Chats — including standard text messages, images, and other media attachments — was done using plain text and clearly visible to anyone who knew where to look.

Furthermore, and even more troubling, Wukko found that all messaging data sent by and stored in Nothing Chats was done unencrypted and via an easily accessible Firebase platform.

nothing chats app (skinned sunbird) is an absolute privacy nightmare that sends/stores ALL data unencrypted on firebase

and for whatever reason it also sends ALL messages and attachments to sentry (again, in plain text)

— wukko (@wukko) November 18, 2023

These reports were bad enough, but additional reporting from 9to5Google further reiterated just how serious these vulnerabilities really were. Per 9to5’s own findings:

“In our Dylan Roussel’s research, we found that once a user authenticates with the JSON Web Tokens (JWT) that are insecure in transit, they can access Nothing Chat’s Firebase database and see messages and files from other users sent in real-time and in plain text.”

Connecting to iMessage in the Nothing Chats app.
Andy Boxall / Pro Well Tech

The report goes on to mention how vCards (aka contact cards) were also fully accessible — including people’s names, numbers, email addresses, and other personally identifiable information. And as if that wasn’t enough, 9to5Google also discovered more than 630,000 media files stored in Sunbird’s Firebase server — the company that powers the Nothing Chats app.

In summary, this is what we’re looking at:

  • Nothing Chats is not end-to-end encrypted
  • Messages from Nothing Chats are sent in plain text
  • Media and other attachments are publicly accessible
  • Sunbird does have access to messages and attachments sent from Nothing Chats

In other words, this is all very, very bad. It’s especially worse considering how quick Nothing was to rebuke these initial security concerns, further claiming that messages were end-to-end encrypted when — in reality — they absolutely were not.

Where does Nothing go from here?

The Sunbird information page in Nothing Chats.
Andy Boxall / Pro Well Tech

On November 18, just one day after launching Nothing Chats, Nothing announced on X that it was officially removing the Nothing Chats app from the Play Store and “delaying the launch until further notice” so the company could “work with Sunbird to fix several bugs.”

Pulling the app and delaying the launch is the right call on Nothing’s end, but it’s impossible to overstate how much damage has likely already been done by this whole debacle.

At the end of the day, these security issues are Sunbird’s fault. Nothing Chats was built on Sunbird’s backend, and it’s up to Sunbird to address these concerns. However, Nothing still decided to partner with Sunbird to create and launch Nothing Chats, and the fact that the company never discovered these vulnerabilities while creating Nothing Chats is troubling.

If you still have the Nothing Chats app on your phone, we strongly advise you to stop using it immediately. That same recommendation applies if you’re using the regular Sunbird app as well. Having iMessage on an Android phone is a fun convenience, but not at the risk of your personal information being so heavily compromised. You’re better off just waiting for Apple to add RCS to the iPhone in 2024.

As for the future of Nothing Chats, it’s difficult to say what will happen next. Nothing says it’s “delaying” the launch, but to fix all of the issues we just talked about here, Sunbird would have to dramatically overhaul its entire backend process. Is Nothing going to want to wait for that to happen, or will it decide to just cut its losses and pull the plug on Nothing Chats for good? At this point, it seems like the latter may be the better choice.

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