Multi SIM - a single MSISDN but many USIM cards exist for a small extra e.g. CHF 5/month. OSS-based is a limitation that only one in use and the others blocked. If you imagine several multi eSIM soldered in devices/cars how can you attribute the system which was in use at a certain time? You may say IMEI helps, ok but how detect the MNO's OSS which IMEI was in use? SIM Forensics normally reveals a lot of info but how do you find out by an eSIM that there exist others?
How do you by eSIM only reverse engineer that there must be a or several other eSIMs (Multi eSIM)?
Where in an eSIM is evidence that its a Multi SIM?
IoT brings eSIM en large and many of these devices are battery-based and one-time-use. They get in action and have to run for some years - and then just throw them away. Disposable IoT with eSIMs.
If disposable systems come into recycling a high risk of non-legal re-use or reworking can start. If not properly dis-associated because e.g a lost system with hope of finding it (FMX Find My X) the activation remains 'active'.
Is Forensics ready for Multi eSIM IoT?