> # Security Users Global

> Field | Description
> --- | ---
> Enforce SNMP Privacy Encryption | Specifies whether the SNMP agent enforces the use of encryption for SNMPv3 messages globally on all the users in the system.
> Cache Timeout | This specifies maximum timeout value for caching the user credentials in the local system.

> Note The privacy password and authentication password are required for an administrator to create a new user or delete an existing user in Device Manager. However, if the administrator does not provide these credentials at the time of creating a new user, Device Manager uses the authentication password of the administrator as the privacy password. If the privacy protocol defined for the user is not DES (default), the SNMP Agent in the MDS will not be able to decrypt the packet and the SNMP Agent times out. If the privacy protocol defined for the user is not DES, the user needs to provide both the privacy password and the protocol when logging in.

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