RIA recommends that X-tee members use multiple timestamp services to improve the fault tolerance of data exchange
RIA recommends that X-tee members use the timestamp service provided by SK ID Solutions in addition to the RIA timestamp service on their security servers, especially when the server supports critical data-exchange processes for a member. On 22 June from 01:00 to 09:33, the RIA X-tee timestamp service tsa.x-tee.ee was unavailable, and data exchange may have been interrupted for security servers and their clients that were configured to use only that service.
CERT24