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"Showboat" doesn't show off, but clearly it doesn't need to, as it's long helped China spy on small market communications providers.
Chinese APT Red Menshen's super-advanced BPFdoor malware defeats traditional cybersecurity protections. All telcos can do, really, is try hunting it down.
A Charming Kitten subgroup is performing some of the most bespoke cyberattacks ever witnessed in the wild, to down select high-value targets.
The APT, aka Earth Estries, is one of China's most effective threat actors, performing espionage for sometimes years on end against telcos, ISPs, and governments before being detected.
In US Senate testimony, a CrowdStrike exec explained how this advanced persistent threat penetrated telcos in Asia and Africa, gathering SMS messages, unique identifiers, and other metadata along the way.