How can I be sure that it’s safe from a security perspective?

It is open source, so your IT can scan it for any malware, and your model validation can check down to the last line of code. Whether it is secure in the sense of ‘correct implementation of methods’ – this is at least partially ensured by the unit test suites in ORE and should be further confirmed over time by peer review. In the end, you will have to judge, and fortunately this is possible, because it isn’t a black box but open source.

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