I understood from the articles that he got problems with his previous global titles in some countries. So he needed new/additional ones. I guess this might be r

I understood from the articles that he got problems with his previous global titles in some countries. So he needed new/additional ones. I guess this might be related to firewalls getting stricter? Whether it's legal or not is probably a difficult question. No law will talk about SS7. I think there are 2 approaches: * Circumventing technical measures ("cracking") is illegal in many places. But AFAICS the only security that SS7 relies on is physical security. When it was invented it was assumed networks are under control of trustworthy authorities. So my understanding is no cracking is involved here. * Under GDPR operators should be obliged to take care of appropriate technical measures for data protection. Whether running a SS7 firewall as e.g. German operators do is enough for that I don't know. Even if it's not violating the GDPR is not a criminal offense. And as we know the US for example has much worse laws covering data protection. * If certain African operators lease global titles that's probably just not enforceable anywhere.