With Noah 4.10 and higher HIMSA is using certificates for an added layer of security between Noah client and Noah server. The NOAH-CA certificate on the server expires every 60 days, but is auto renewed, so there is no action required on the part of the hearing care business.

If the IT department monitors server system events, they may see a notice that the certificate will be expiring, but there is no action required on their part, the certificate is self-updating.