Virtual StrongBox


Welcome to Virtual Strong Box


Virtual StrongBox 2.0 is the easiest, safest way to store important documents online.


Use Virtual StrongBox as a backup to hard or electronic copies that you have stored in your home, office, or computer. Files are secured by 256 bit encryption, and the first 50 MB of storage space is free for Altra members!

Internet Explorer Users: Virtual StrongBox 2.0 requires the use of Internet Explorer 10 or higher to run correctly. 

Features include:

  • New responsive design makes Virtual Strongbox more flexible, more accessible and more personal.
  • Enterprise File Exchange feature allows Altra to share sensitive files securely and directly with our members. 
  • Usage meter that keeps track of the amount of space member has in total as well as how much currently in use
  • Drag and Drop folders and files into your account as well as between folders inside the application.
  • VSB’s patented secure storage protects files with AES 256-bit encryption ensures that only subscribers have access to the documents they load.  




About Virtual StrongBox

How do I access Virtual StrongBox?

After signing in to online banking, click the Virtual StrongBox tab and follow the prompts. Click to view the Virtual Strong Box User Guide


What are the system requirements to use Virtual StrongBox?

We recommend that you use an up to date browser. Whichever browser you choose, you'll need to enable JavaScript, First-party Cookies and Third-party Cookies. If you do not already have Microsoft Silverlight installed, you will be prompted to do so before opening Virtual StrongBox.

Please note: Virtual StrongBox was not designed for use on mobile devices. It may work on some devices however, functionality may be limited.


What types of documents can I store in Virtual StrongBox?

You can store any documents that are important to you personally or professionally (i.e. marriage certificate, copy of will, homeowner’s insurance policy, vehicle insurance policy, etc.).


Are my files safe in Virtual StrongBox?

Yes, all files are protected by 256 bit encryption. The Advanced Encryption Standards (AES) specifies a Federal Information Processing Standards approved cryptographic algorithm that can be used to protect electronic data. The AES algorithm is a symmetric block cipher that can encrypt (encipher) and decrypt (decipher) information. For added protection, you can password protect or encrypt your document before uploading to Virtual StrongBox. To do this, please consult documentation for the software you are using.


Can I share files that I've stored in Virtual StrongBox?

Yes. You can set up a File Share link for one-time use or multiple-time use. Please view the Virtual Strong Box User Guide for complete details. 

For added protection, you can password protect or encrypt your document before uploading to Virtual StrongBox. To do this, please consult documentation for the software you are using.


Can the content from one member’s StrongBox be transferred to another’s?

No. This function is not available.


How do I purchase more storage?

Each member can store up to 50 MB for FREE. At any time you may select Upgrade My Storage to purchase more storage space. Once the additional storage is purchased, the Usage Meter will update to display the amount and percentage used.

Annual Pricing  Storage Amounts 
100 MB $8.95
250 MB $14.95
500 MB $23.95
1 GB $36.95
2 GB $69.95
5 GB $110.00
10 GB $150.00


How does the charge for additional storage appear on a statement?

The merchant name will appear as MVSTRONGBOX. Unsuccessful credit/debit card transactions are communicated at the point of the transaction. You will be presented with a message informing you the transaction was not successful.


What information is required to purchase additional storage space?

You will need to know how much additional storage you wish to purchase. You will be prompted to enter Name, Address and credit/debit card details.


Once I purchase additional storage space, do I have to continue paying for it?

Yes, if you choose to keep the additional storage. One year from the date of the original purchase, you will get an in session reminder that gives the option to purchase the additional storage for another year. If you choose to reduce your storage amount. please contact Altra.


How do I deactivate or unsubscribe to Virtual StrongBox?

Once a StrongBox has been created you must contact Altra Federal Credit Union to deactivate/unsubscribe from it.


Who do I contact if I need help with Virtual StrongBox?

Please contact our Member Contact Center at 800-755-0055.


Virtual StrongBox Tour