|Update re withdrawing support for SSLv3 connections to Government Gateway
The following announcement regarding the permanent withdrawal of support for SSL v3.0 from the live (production) Gateway at https://secure.gateway.gov.uk has been published on our Service Availability page at: https://www.gov.uk/government/collections/hm-revenue-and-customs-service-availability-and-issues:
"Government Gateway SSLv3 disabled 10 October 2016
On 30 September 2015, HM Revenue and Customs (HMRC) made a change so that if you were using the SSLv3 protocol to connect to our services you were no longer able to. For the majority of online customers this meant no change as they were already using a more secure protocol (such as TLS1.0, TLS1.1 or TLS1.2) by default.
Government Gateway will be disabling SSLv3 on a permanent basis on 10 October 2016.
If you're uncertain about the type of secure connection your browser or other software can support, you can check it at https://www.howsmyssl.com/ and other similar services.
If you're still using the SSLv3 protocol it is advised that you use a more secure protocol to connect to Government Gateway."