As part of the licensing terms for certain (most?) Oracle products, you have to agree to be audited by the company, to ensure your usage does not exceed the licences you have bought. Such audits are notorious for regularly telling customers that what they thought was compliance with the licence was nothing of the sort, and that they had better hand over more money to make the problem go away. Oracle’s official position has always been that there is some kind of separation between the operations of the audit department and the sales department, so the auditing process was entirely impartial and under no pressure to increase company revenues. Now some ex-Oracle execs are publicly admitting this is a load of nonsense <https://www.theregister.com/2022/01/25/oracle_audits/>. I don’t think Oracle is unique in this. Lots of big software companies (including Microsoft, I believe) offer similar site-licensing of their products, with similar audit requirements. And likely similar outcomes when an audit actually takes place.