Data from a breach of American Tower, one of the largest wireless communications infrastructure companies, has been indexed by Have I Been Pwned, which added 216,601 affected accounts. The extortion group ShinyHunters is linked to the incident, consistent with its sweeping 2026 campaign that has used social engineering against staff to reach corporate systems and exfiltrate data at major enterprises. American Tower operates critical telecom infrastructure, making any exposure of employee or partner data a concern for follow-on phishing and targeted attacks. Exposed contact details are commonly reused for convincing phishing against affected individuals and the organization.
The ShinyHunters extortion group has now published the Charter Communications data it stole, after the telecom giant apparently refused to pay. Earlier reporting put the breach at 4.9 million HIBP-confirmed unique accounts; ShinyHunters' leak is described as potentially impacting up to 5 million customers. Charter is one of the largest US telecoms, providing internet, cable, mobile, and phone services to residential and business customers under the Spectrum brand. The data was originally exfiltrated via voice-phishing of a Microsoft Entra account on April 1 and a Salesforce export. With the data now public rather than merely claimed, the phishing and identity-theft risk to affected customers rises sharply.
HIBP has confirmed 4.9 million unique accounts (4,851,517 email addresses) were affected by the Charter Communications breach disclosed earlier this week. The ShinyHunters extortion gang initially claimed 42 million records exfiltrated from Charter's Salesforce instance via voice-phishing of a Microsoft Entra account on April 1; the unique-account count is lower because individuals appeared on multiple records (customer + business + plan-info). Charter publicly denies that CPNI (Customer Proprietary Network Information) or sensitive personal data was taken. The HIBP entry refines the scope to a defender-actionable figure and lets customers and IR teams check exposure across their workforce.
US broadband giant Charter Communications has confirmed a data breach after the ShinyHunters extortion group listed it on its Tor leak site claiming 40 million stolen consumer and business records. ShinyHunters told BleepingComputer the intrusion began April 1 via a vishing attack that compromised an employee's Microsoft Entra account, used to export records from the company's Salesforce instance. Stolen data reportedly includes names, email addresses, addresses, phone numbers, plan information, and some CPNI (Customer Proprietary Network Information). Charter publicly denies CPNI was taken. ShinyHunters' SaaS-extortion playbook continues: Salesforce + Entra/Okta SSO + BPO vishing is the same model used against Instructure and others.
Lumen Black Lotus Labs and PwC Threat Intelligence have detailed a Chinese cyber-espionage campaign tied to the Calypso group (also tracked as Red Lamassu) that has been hitting telecommunications providers across Asia Pacific and parts of the Middle East since mid-2022. The operators run a Linux post-exploitation framework called Showboat (or kworker) that doubles as a SOCKS5 proxy and port-forwarder, plus a Windows RAT called JMFBackdoor delivered via DLL-sideloading of fltMC.exe + FLTLIB.dll. Showboat retrieves a 'hide' command from public dead-drops like Pastebin to mask its process. The tooling appears to be shared across multiple China-aligned clusters targeting distinct victim sets.
Recorded Future News has connected last summer's three-hour POST Luxembourg outage - which took down landline, 4G, and 5G networks across the country and left residents unable to dial emergency services - to a zero-day in Huawei enterprise routers running VRP. Specially crafted network traffic merely passing through caused the routers to enter a continuous restart loop. Luxembourg's prosecutor concluded no one had targeted Luxembourg specifically; the data was just transit traffic. Huawei has not assigned a CVE for the bug and routes its enterprise advisories through a restricted customer portal rather than publicly, leaving operators with little ability to track exposure.
TrustStrike Labs