On 25 February, ZD Net published an article saying that the cybercrime ecosystem is much smaller and far more interconnected than the layperson might realise. It says that cybercrime groups often have complex supply chains, like real software companies, and they regularly develop relationships within the rest of the e-crime ecosystem to acquire access to essential technology that enables their operations or maximises their profits; and the third-party technologies can be classified into 3 categories: services, distribution, and monetisation.
https://www.zdnet.com/article/this-chart-shows-the-connections-between-cybercrime-groups/
I would be grateful for any modest contribution for my time and ongoing costs of computer, relocation, and (still ongoing) removal costs, I have a page, where contributions start as low as $3, at https://www.buymeacoffee.com/KoIvM842y