Firewall

Australia is moving quickly to shore up the 000 emergency call service ahead of the bushfire season by hauling telco chiefs to Canberra and fastโ€‘tracking reforms. The Australian Communications and Media Authority (ACMA) has opened a compliance investigation, and Optus has appointed Kerry Schott to lead an independent technical review into the failures. The reforms build on proposals flagged after the nationwide Optus outage in November 2023 and signal a shift from afterโ€‘theโ€‘fact reporting to proactive assurance for a service that must be available under extreme conditions.
A second emergency call disruption in as many weeks has escalated questions about Optusโ€™ operational controls and the resilience of Australiaโ€™s emergency communications ecosystem. Optus reported that a fault tied to a mobile tower in Dapto, Wollongong, left around 4,500 users affected between 3:00 a.m. and 12:20 p.m. on Sunday, with nine Triple Zero attempts failing during that window. While the scope was geographically contained, the event compounds a pattern that now includes multiple emergency call failures across two weeks. Repeated emergency call failures undermine public trust and expose systemic weaknesses in how operators design, test, and govern safety-critical services.
As the U.N. General Assembly convened, U.S. authorities quietly removed a dense cluster of SIM servers and cards that investigators say could have overloaded mobile networks and disrupted emergency communications across the New York metro area. Investigators seized more than 300 SIM servers and roughly 100,000 SIM cards distributed across multiple sites within 35 miles of the United Nations complex. Mass device farms can generate signaling storms that overwhelm cell sites and the mobile core, similar in effect to a distributed denial-of-service attack.
OneLayer has partnered with Palo Alto Networks to integrate Zero Touch Provisioning (ZTP) with AI-driven Zero Trust security for private LTE/5G networks. This collaboration automates SIM provisioning, enhances device authentication, and simplifies firewall security management, enabling enterprises to deploy secure, scalable, and efficient private 5G networks.

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