Several folks included in the breach list have been contacted and the legitimacy of their data verified
https://techcrunch.com/2024/07/11/mspy-spyware-millions-customers-data-breach/
mSpy was previously breached in 2015, with some 400,000 users' data published on the dark web – The company was breached again in 2018, resulting in several million more customer records being exposed.