Portuguese Web hosting firm Bitcanal accused of helping spammers hijack large swathes of dormant Internet address space over the years. Security researchers have tracked suspected theft of millions of IPv4 Internet addresses back to the company. The company would apparently sell or lease the space to spammers, who would then begin sending junk email from those addresses. Some of the more brazen hijacks attributed to BitCanal and its customers involved thousands of Internet addresses assigned to active organizations, such as the Texas State Attorney Generals office.”]
Source: https://krebsonsecurity.com/2018/07/notorious-hijack-factory-shunned-from-web/