Senator Maria Cantwell Calls for Accountability from AT&T and Verizon Over Security Assessments

On February 3, 2026, Democratic Senator Maria Cantwell publicly accused telecommunications giants AT&T and Verizon of obstructing the release of critical documents related to a significant Chinese espionage operation known as Salt Typhoon. This operation allegedly infiltrated U.S. telecommunications networks, raising concerns about national security. Cantwell has requested that the CEOs of both companies testify before Congress to address these issues and provide clarity on the security of their networks.

Senator Says AT&T, Verizon Blocking Release of Salt Typhoon Security Assessment Reports

Senator Cantwell has specifically asked AT&T and Verizon to disclose security assessments conducted by Mandiant, a cybersecurity unit of Alphabet. According to Cantwell, Mandiant has refrained from providing these assessments, seemingly under the influence of AT&T and Verizon. She emphasized the importance of these documents in understanding the ongoing threats posed by the Salt Typhoon hackers, who are reportedly still active.

Senator Says AT&T, Verizon Blocking Release of Salt Typhoon Security Assessment Reports

In her correspondence to Senate Commerce Chair Ted Cruz, Cantwell expressed her concerns regarding the lack of transparency from AT&T and Verizon. She stated, “If AT&T and Verizon are not going to provide Congress key documentation voluntarily, then I believe this committee must promptly convene a hearing with their CEOs so they can explain why Americans should have confidence in the security of their networks amid mounting evidence that the Salt Typhoon hackers remain active and undeterred.”

Senator Says AT&T, Verizon Blocking Release of Salt Typhoon Security Assessment Reports

The actions of AT&T and Verizon have drawn criticism from various quarters, particularly regarding their perceived lack of cooperation with congressional inquiries. Critics argue that withholding security assessments undermines public trust in the telecommunications sector and poses risks to national security. The situation highlights the tension between corporate interests and governmental oversight in matters of cybersecurity.

Senator Says AT&T, Verizon Blocking Release of Salt Typhoon Security Assessment Reports

As the situation unfolds, it remains to be seen whether AT&T and Verizon will comply with Senator Cantwell's requests or if congressional hearings will be convened to address these pressing security concerns. The outcome could have significant implications for the telecommunications industry and its regulatory landscape.

Senator Says AT&T, Verizon Blocking Release of Salt Typhoon Security Assessment Reports

While Senator Cantwell has made serious allegations against AT&T and Verizon, there has been no official response from either company regarding the claims of obstruction or the refusal to release security assessments. This lack of information leaves gaps in understanding the full scope of the situation and the companies' positions on the matter.

Senator Says AT&T, Verizon Blocking Release of Salt Typhoon Security Assessment Reports

• “If AT&T and Verizon are not going to provide Congress key documentation voluntarily, then I believe this committee must promptly convene a hearing with their CEOs so they can explain why Americans should have confidence in the security of their networks amid mounting evidence that the Salt Typhoon hackers remain active and undeterred,” — Maria Cantwell, U.S. Senator

Senator Says AT&T, Verizon Blocking Release of Salt Typhoon Security Assessment Reports