What is AxCrypt’s Secured Messenger?
Secured Messenger is a secure, end-to-end encrypted messaging feature built into AxCrypt. It allows you to send private messages to any email address using AES-256 encryption, ensuring that only the intended recipient can read the content - no matter which device they’re on.
The Secured Messenger can be accessed from any web browser or through AxCrypt’s Desktop and mobile apps as well. Messages remain encrypted using 256-bit symmetric encryption, even when synced across devices. All data in-transit is further protected with Transport Layer Security (TLS), ensuring end-to-end privacy during transmission.
AxCrypt’s Secured Messenger at a Glance
Private, secure communication across devices
Send and receive end-to-end encrypted messages from any device, with full control over how long each message remains visible - once, timed, or forever.
AES-256 encryption for complete confidentiality
Messages are encrypted using AES-256-bit encryption in Counter (CTR) mode with a unique, randomly generated Initialization Vector (IV) for every message. This ensures even repeated messages look completely different when encrypted.
Secure and Private Servers
AxCrypt’s Secured Messenger operates on servers located in the EU, fully compliant with stringent GDPR regulations and NIS2 cybersecurity standards.
Ephemeral Session Keys
Key wrapping of the message is done using the NIST specification for AES Key Wrap. The key derived from the message with PBKDF2-SHA512 is only used as a key encrypting key.
How Do We Secure Your Messages?
AxCrypt’s Secured Messenger encrypts every message using your account password, which is never stored on your device or our
servers - ensuring that only you and the intended recipient can access the content.
We use the Advanced Encryption Standard (AES) with 256-bit keys in Counter (CTR) mode, along with a unique, random Initialization Vector (IV) for each message. This ensures maximum confidentiality and prevents pattern detection.
Each message is encrypted with a newly generated 256-bit session key. This session key is then securely wrapped using AES Key Wrap, following NIST specifications. The wrapping key is derived from your password using PBKDF2 with SHA-512, and is used solely for
encrypting the session key - not the message itself.
In practice, here’s how it works:
Encryption: The message is encrypted with a random session key using AES-256. This session key is then encrypted with your
password and attached to the message.Decryption: When the recipient opens the message, their password is used to decrypt the session key, which is then used to decrypt
the message content.
This layered approach ensures that your messages are always secure - both in transit and at rest.
How to Send a Secured Message?
- Log into your AxCrypt account.
- Go to the “Secured Messenger” menu.
- Click on the 'New Message' button.
- Enter the recipient's email address.
- Select the message visibility duration: Forever, Once, 1 Hour, 1 Day, 1 Week, 1 Month, 1 Year
- Type your message in the provided text box.
- Click Send.
Your message is now AES-256 encrypted and securely delivered.
How can I send a message to multiple recipients?
You can easily send a secure message to multiple people by adding their email addresses in the 'To' field, separated by commas. Follow these simple steps:
- Open AxCrypt’s Secured Messenger on any platform (web, mobile, desktop)
- Click on the 'New Message' button.
- In the 'To' field, enter multiple email addresses, separated by commas.
- Type your message and set the desired visibility duration.
- Click Send to securely deliver your encrypted message to all recipients.
How to Read Messages Sent to You
Go to the Inbox or Unread tab to view received messages.
How to View Messages You’ve Sent
Go to the Sent tab to see a history of your secured messages.
Message Visibility Options
- Once: Expires after one view
- Timed Durations: Accessible for the chosen time window (e.g., 1 Day, 1 Week)
- Forever: Stays available until manually deleted
You cannot change the visibility after sending a message
Message History & Tabs
- Inbox: View all received messages
- Unread: Quickly access new/unread messages
- Sent: View messages you’ve sent
Managing Messages
Select / Multi-Select Actions
- Click the checkbox beside one or multiple messages
- Perform batch actions:
- Delete
- Mark as Read
- Mark as Unread
Delete a Message
- Select the message(s)
- Click Delete
- Deleted messages are no longer visible to you but may still be accessible to the recipient, depending on that particular messages’s opted visibility settings.
Searching Messages
- Use the Search bar at the top of the Secured Messenger view to filter based on a keyword.
Note
AxCrypt provides strong encryption without any backdoors. If you forget your password, your encrypted messages will remain inaccessible. Since they are locked with your original password and we do not store or have access to it, we cannot help recover or decrypt your files.
FAQ
What is AxCrypt’s Secured Messenger?
How is Secured Messenger different from regular email?
Does the recipient need an AxCrypt account to read the message?
How secured is your message? Can AxCrypt read it?
What encryption does Secured Messenger use?
Can I control how long the message is available?
Where is my message data stored?
What happens to the message after it crosses its visibility limit?
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