The database contains information that could be used in social engineering and SIM swapping attacks.
Underneath the gaming platform worth $68 billion and used by over half of all children in America is a ballooning and highly profitable ecosystem of hackers and traders.
The technique could have been particularly valuable for SIM swappers, who take over phone users' accounts.
FCC rule update takes aim at rampant identity and cryptocurrency theft made possible by wireless number port-out fraud.
European police accused several people of SIM swapping, phishing, and hacking in support of Italian organized crime.
A teen pleaded guilty to harassing and swatting a Tennessee man named Mark Herring, who died when police raided his home.
All the mobile carriers have mitigated a major SMS security loophole that allowed a hacker to hijack text messages for just $16.
A gaping flaw in SMS lets hackers take over phone numbers in minutes by simply paying a company to reroute text messages.
"They accused me of hacking the met [Metropolitan] Police; Chantel Jeffries; Adam Sandler; and accused me of stealing over $1m in crypto. I'm fine though."
The action centres around the OGUsers community. It is highly unusual for social media companies to publicly announce that it has identified the real names of pseudonymous users.