Human rights activists, journalists, business leaders, IT admin staff, politicians and regular citizens are all being hunted via their mobile devices.
The attacks are delivered via other messaging apps.
It's time to make it stop.
Start messaging securely.
Start using Numbers Station.
We’ve decided to remove our Numbers Station app from the public App Store to focus our resources on enhancing and supporting our primary apps, Am I Secure? and Am I Secure? for Work, which serve a broader audience and align more closely with our long-term vision. For government or corporate clients, a private version of the app—designed for clients to build and distribute themselves—remains available. This decision allows us to deliver the best possible experience across our product lineup.
We’re deeply grateful for the support Numbers Station has received and encourage users to explore our other offerings. For current subscribers, your existing subscription will remain active and unaffected.
For those seeking the most secure messenger publicly available, we recommend iMessage on iOS or iPadOS. To maximize security, ensure all participants use iMessage (blue text bubbles and blue send button) with Lockdown Mode enabled on their devices and utilize iMessage's Contact Key Verification. While other messengers may offer strong end-to-end encryption, iMessage with Lockdown Mode is uniquely hardened against zero-day, zero-click exploits.
If you’re interested in the private version, please contact us at support@numbersstation.app.
Keep attackers like the NSO Group, Cytrox and Intellexa and malware like Pegasus and Predator off of your device.
Keep your messages and contacts safe, even when forensic tools like Cellebrite UFED or Grayshift's GrayKay have compromised and unlocked your device.
There is a global spyware industry that does nothing but sell the ability to remotely exploit or hack your devices. The spyware collects your messages, contact lists, GPS, data from other apps and even uses your device's microphone to eavesdrop. The majority of these attacks occur via other messaging apps, since the apps can be exploited by sending malicious data directly to the victim from an unknown to them address. Victims do not see these messages nor know that they have been exploited, these are referred to as "zero-click" exploits since no victim involvement is required. The use of this spyware against human rights activists, journalists and regular citizens is dangerous and even lethal.
Numbers Station has hardened its security from these exploitation techniques. For example, Numbers Station offers the ability to quarantine incoming messages, such as those from unknown users. These messages will not be processed so exploitation is prevented and the user is aware a message was received. Suspicious-looking quarantined messages, such as ones from an unknown address, can be submitted to Numbers Station for further analysis. Numbers Station will alert you if the message is deemed malicious. Now it is the attacker's exploits that are at risk, not you. Numbers Station is the only messaging app to offer this service.
See the FAQ section for details on other steps Numbers Station takes to protect you from remote exploitation.
As quantum computers become more powerful, they will be capable of breaking the encryption used by other messaging apps. Authoritarian regimes are devoting vast resources to quantum computing. Their breakthroughs will be secret. The world will not know when the day has come that current encryption has been broken.
Governments around the world have scrambled to move their secure communications to quantum safe systems. In the meantime, users like you are left vulnerable. Adversaries are collecting your messages today, with plans to decrypt them in the future. This is called "harvest today, decrypt later". For journalists and human rights activists fighting hostile authoritarian states, your messages need to be secure today, tomorrow and for your lifetime.
Numbers Station’s quantum safe end-to-end encryption protects you now and in the future. End-to-end encryption means only the sender and recipient can decrypt the message, not Numbers Station or anyone else. No other messaging app offers this level of protection. Unbreakable encryption today and tomorrow.
The Numbers Station app offers a total of three independent layers of encryption:
Inner: Quantum safe & end-to-end (optional to use)
Middle: State-of-the-art & end-to-end
Outer: State-of-the-art & app-to-server
See the FAQ section for details on the encryption systems used.
Numbers Station does not require a phone number, e-mail address, social media account or any personally identifying information to create an account or use the app. Numbers Station knows nothing about you. When you purchase a subscription, Numbers Station does not receive any details about you, Numbers Station only knows that the subscription is active.
Numbers Station uses randomly generated addresses, like nLsYL1QOt5NcrOJ3Vwxpj90uTju2. Unique addresses assigned to each user are not available except through direct sharing by the user with others. Addresses can also be shared in person via optional QR code scanning, which also securely shares the material required for quantum safe encryption. Other apps permit hackers to search for your email address or phone number, confirm you use a specific app and then send you malicious messages containing zero-click exploits. Create different random addresses to use with different contacts, to further protect yourself from metadata analysis.
If your device were to be grabbed out of your hands while you're using it, your data is accessible because your device is already unlocked. Attackers with physical possession might also be able to unlock a locked device without your cooperation. To protect against this, Numbers Station offers encryption and password protection for the app itself, protecting all user data (messages, files, images) even when the device is unlocked. Numbers Station is the only messaging app that uses the Secure Enclave, a security co-processor built-in to your device, to create and store the encryption keys that are combined with your password to protect this data. These encryption keys are never accessible outside of the Secure Enclave, not even to Numbers Stations or an attacker with full physical access to the device. No offline password cracking is possible either.
Numbers Station knows nothing about its users, nor do we want to. Numbers Station's revenue is derived entirely from the subscription fees charged via in-app purchases, not from selling information about users.
OTHER USE CASES
Not all business communications need to be retained, many are best kept ephemeral. Reduce your civil liability risk via proper record management.
Hostile nation states will meet their intelligence requirements one way or another. Don't think your communications on private devices aren't at risk.
In some parts of the world, communications concerning medical information and decisions are being used against patients and doctors.
Company branded but on the same messaging network as the public version or a private version with branding on a private messaging network separate from the public version.
No connection to your real identity, phone number or email address. The second layer of password protection also ensures other people that may have physical access to your device see only what they are meant to see.
