Fixed in 14.5 FP1 - ID Vault password authentication to a Domino 14.5.0 ID Vault server fails with error: Illegal Security function code
Daniel Nashed – 2 October 2025 22:17:05
Domino 14.5 introduced a new more secure ID Vault format. This format works only for Notes 14.0 and higher clients.
In mixed client environments with older versions this new format caused that the clients could not access their ID in ID Vault.
The format gets updated when the ID is updated in ID Vault.
Here is the updated technote which describes the details https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0122915
With Domino 14.5 FP1 the format has been reverted to the previous format.
But you might have Notes.IDs with the new format, which some user might not be able to read.
Here is how to recover those files:
1. You cloud reset the password which would write the Notes.ID in the previous format
2. You could remove the current Notes.ID from ID Vault and let the client sync it again to ID Vault.
To make sure you don't loose the ID, you could copy the existing document into another database as a backup.
If the user also has a newer client which understands the new format, any kind of vault operations which writes the ID should correct it.
If you did not update your ID Vault servers yet, make sure you update to Domino 14.5 FP1.
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