There is an interesting article over on PCWorld.com about a pending change in the NIST standards for federal web site security protocols. The current standard is the use of Transport Layer Security (TLS 1.0). NIST is expected to change that to TLS 1.1 and/or 1.2. Now most Federal web sites do not require security settings as they are one-way information providers. Sites providing secure communications (like the CSAT tool) will be affected by this change.
We can be fairly sure that the folks at ISCD will make an announcement when this change is applied to their CSAT sites. In the meantime it makes sense to verify that the computers that you used to communicate with CSAT are all capable of using TLS 1.1 or 1.2. Check the “Security Settings” under the “Advanced” tab on the Internet Options on Internet Explorer (I’m sorry I don’t know the technique for other browsers; I continue my love-hate relationship with MS).
More when this actually comes to pass.