Tyro today issues this important warning for the few newsagents still running Windows XP:
Summary
During a routine security upgrade here at Tyro on the 26th of May, related to our payments integration system, we discovered (much to our surprise) that there are Tyro merchants that are using out of date and unsupported operating systems. Specifically, Windows PCs that run XP Service Pack 2 or earlier (of which support was retired in July, 2010) and some other versions of Windows are not able to support newer security certificates.
The certificate that we use to secure our integration system expires on the 6th of June, 2016 and the new certificate cannot be accepted by POSs that run on Windows XP Service pack 2 or earlier.
Actions
If you have customers that are on an outdated release levels, you need to request those that use Tyro integration to update their system as a matter of urgency. Please contact them and assist them to upgrade their PCs to a currently supported version of Windows or if that is not possible, to at least Windows XP Service Pack 3.
Want to know more?
You can learn more about the problem with SHA-1 vs SHA-2 here:
https://www.digicert.com/sha-2-faq.htm
If you are not the right person for this message within your organisation, can you please forward it onto to the right person.
Let us know through ur help desk, if we can help in any way.
Here is how to check your version FYI: