VxRail Manager API: Unusual and suspicious request blocked

Hello,

We have developed a java REST client using Apache HttpComponents to communicate with the VxRail manager REST API. It was working fine but since VxRail 7.0, we face to a communication issue on all requests: the server responds us with a HTTP 403 status and the message: "Unusual and suspicious request blocked. If you think this is a false positive alert, please contact support team."

The strange thing is if we use a REST client like postman or yarc, the VxRail Manager responds successfully. Anyone can help us about this security message?

Thanks.
Chris