AT&T beefed up its security cred by joining a headline cybersecurity venture from Anthropic, while forming a new security initiative including Lumen Technologies, T-Mobile US, and Verizon.

As revealed yesterday, AT&T is a member of Project Glasswing, the elite AI-driven bug hunting taskforce put together by AI giant Anthropic, which counts Cisco, Nvidia, Broadcom, and Palo Alto Networks as members.

When AT&T's membership began remains a mystery; the firm disclosed its participation after Verizon claimed to be the "only" telecommunications enterprise in the elite upon announcing its Glasswing affiliation this week.

AT&T fact-checked that claim with a spokesperson telling SDxCentral: "We are participating in Project Glasswing, an initiative to strengthen critical software using Claude Mythos Preview. We have long been committed to innovation that helps keep our network available and secure for the customers who rely on us every day. This includes cutting-edge AI programs, sophisticated network tools, and collaboration with industry partners."

Project Glasswing was established in April around Claude Mythos Preview, Anthropic's new large language model (LLM). Anthropic claimed Mythos to be a general-purpose LLM with a particular knack for cybersecurity tasks, having found “thousands” of high-severity vulnerabilities across every major operating system and web browser without human supervision.

With no current plans to make Mythos publicly available, its use is currently limited to Project Glasswing partners as well as a group of more than 40 additional and unnamed organizations.

Anthropic has begun to allow "Glasswingers" to publicly share their findings with Mythos, a call so far answered by the likes of Mozilla and Cloudflare.

C2 ISAC assembles

AT&T also joined a telecom-centric Project Glasswing of its own, in the form of the Communications Cybersecurity Information Sharing and Analysis Center (C2 ISAC).

The group includes Charter, Comcast, Cox, Lumen Technologies, T-Mobile US, Verizon, and Zayo. While the venture does not revolve around a specific model, the move echoes Glasswing in its response to AI-driven cybersecurity threats.

As recently explored by SDxCentral, AI is being explored both by enterprises and cybersecurity attackers, with Nokia warning that state-sponsored threats are adopting AI in their arsenal, leading to a need for AI-driven response speeds in distributed denial of service (DDoS) defense services.

Nokia’s research also claimed only 7% of operators felt fully prepared for another attack on the scale of Salt Typhoon, which was dubbed the "worst telecom hack" in U.S. history.

The official C2 ISAC launch claimed the U.S. telecommunications sector "recognizes the urgent need for robust, unified defenses in the face of persistent threats to networks and consumers," and that C2 ISAC was formed "because no single company has full visibility into every threat or can address every risk alone."

C2 ISAC's members will share resources, expertise, and real-time intelligence in collaboration with the National Coordinating Center for Communications (COMM-ISAC).

The eight founding companies will form the group's board of directors, consisting of their chief information security officers (CISOs). Institute of Critical Infrastructure Technology (ICIT) Executive Director Valerie Moon will serve as executive director. Moon's previous roles include chief strategy officer (CSO) for the Cybersecurity and Infrastructure Security Agency (CISA), and deputy assistant director for the FBI.

"The C2 ISAC will strengthen individual member organizations and support the resilience of the nation's critical communications infrastructure," Moon stated. "I look forward to getting started."