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UK Announcement: HMRC APIs – Cipher changes
Dear Customer,
HMRC have issued the following communication,
"On 30 August 2023 we updated our test services to remove support for a number of cipher suites which are known to be more vulnerable to attack.
We’re planning to roll out these changes to our live (production) environments on 7 May 2024. While we expect the change to happen that day, we’re not able to provide an exact time.
To ensure that this security change has not impacted your application, we strongly recommend that you test your applications against the relevant services to ensure that your connectivity is not affected:
Transaction Engine External Test Service: