By default, Mandiant ASM (Attack Surface Management) has a focused approach to identifying assets for testing. This is great for minimizing false positives, but penetration testers who want a wider net can enable "broad scoping." While this feature helps uncover more potential targets, it might also lead to some inaccuracies in asset ownership identification due to the broader DNS entity scoping.
The above can be found here: https://docs.mandiant.com/home/asm-collections-overview
Enabling broad scoping: