Starting March 4, 2017, TLS 1.0 encryption protocol will be disabled in Trend Micro’s Business Support Portal.
This article lets you know when TLS 1.0 will be officially disabled for TMCAS.
TLS 1.0 has been officially disabled for the TMCAS UI Server last October 15, 2017.
Starting October 15, 2017, you will not be able to access the TMCAS UI server if you are using a browser with TLS 1.0.
To know more about the TLS 1.0 deactivation, refer to this article: TLS 1.0 has been disabled last March 4, 2017.