AT&T INC. 10-Q

Item 4. Controls and Procedures The registrant maintains disclosure controls and procedures that are designed to ensure that information required to be disclosed by the registrant is recorded, processed, summarized, accumulated and communicated to its management, including its principal executive and principal financial officers, to allow timely decisions regarding required disclosure, and reported within the time periods specified in the SEC’s rules and forms. The Chief Executive Officer and Chief Financial Officer have performed an evaluation of the effectiveness of the design and operation of the registrant’s disclosure controls and procedures as of September 30, 2025. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the registrant’s disclosure controls and procedures were effective as of September 30, 2025. There have not been any changes in our internal control over financial reporting during our most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. 41 AT&T INC. SEPTEMBER 30, 2025 CAUTIONARY LANGUAGE CONCERNING FORWARD-LOOKING STATEMENTS Information set forth in this report contains forward-looking statements that are subject to risks and uncertainties, and actual results could differ materially. Many of these factors are discussed in more detail in the “Risk Factors” section herein and in our most recent Form 10-K and Form 10-Q. We claim the protection of the safe harbor for forward-looking statements provided by the Private Securities Litigation Reform Act of 1995. The following factors could cause our future results to differ materially from those expressed in the forward-looking statements: • Adverse economic and political changes, public health emergencies and our ability to access financial markets on favorable terms. • Increases in our benefit plans’ costs, including due to worse-than-assumed investment returns and discount rates, mortality assumptions, medical cost trends, or healthcare laws or regulations. • The final outcome of FCC and other federal, state or foreign government agency proceedings (including judicial review of such proceedings) and legislative and regulatory efforts involving issues important to our business, including, without limitation, the results of pending governmental investigations; the transition from legacy technologies to IP-based infrastructure, including the withdrawal of legacy TDM-based services; universal service; broadband deployment; wireless equipment siting regulations; E911 services; rules concerning digital discrimination; competition policy; privacy; net neutrality; copyright protection; availability of new spectrum on fair and reasonable terms; and wireless and satellite license awards and renewals, and our response to such legislative and regulatory efforts. • Enactment of or changes to state, local, federal and/or foreign tax laws and regulations, and actions by tax agencies and judicial authorities, and the resolution of disputes with any taxing jurisdictions, pertaining to our subsidiaries and foreign investments. • U.S. and foreign laws and regulations regarding intellectual property rights protection and privacy, personal data protection and user consent, which are rapidly evolving. • Our ability to compete in an increasingly competitive industry and against competitors that can offer product/service offerings at lower prices due to lower cost structures and regulatory and legislative actions adverse to us, including non-regulation of comparable alternative technologies and/or government-owned or subsidized networks, and our response to such competition and emerging technologies. • Disruptions in our supply chain that have a material impact on our ability to acquire needed goods and services. • The development and delivery of attractive and profitable wireless and broadband offerings and devices, including our ability to match speeds offered by competitors; and the availability, cost and/or reliability of technologies required to provide such offerings. • Our ability to adequately fund additional wireless spectrum and network development, deployment and maintenance; and regulations and conditions relating to spectrum use, licensing, obtaining additional spectrum, technical standards and deployment and usage, including network management rules. • Our ability to manage growth in wireless data services, including network quality. • The outcome of pending, threatened or potential litigation and arbitration. • The impact from major equipment, software or other failures or errors that disrupt our networks or cyber incidents; the effect of security breaches related to the network or customer information; our inability to obtain handsets, equipment/software or have handsets, equipment/software serviced in a timely and cost-effective manner from suppliers; severe weather conditions or other natural disasters including earthquakes and forest fires; public health emergencies; energy shortages; or wars or terrorist attacks. • The issuance by the FASB or other accounting oversight bodies of new or revised accounting standards. • The imposition of tariffs and their duration and uncertainty surrounding further tariffs and congressional action regarding spending and taxation, which may result in changes in government spending and affect the ability and willingness of businesses and consumers to spend in general. • Our ability to realize or sustain the expected benefits of our business transformation initiatives, which are designed to reduce costs, enable legacy rationalization, streamline distribution, remove redundancies and simplify and improve processes and support functions. • Our ability to successfully complete divestitures, as well as achieve our expectations regarding the financial impact of completed and/or pending transactions. Readers are cautioned that other factors discussed in this report and in our most recent Form 10-K, although not enumerated here, also could materially affect our future earnings. 42 AT&T INC. SEPTEMBER 30, 2025 PART II – OTHER INFORMATION Dollars in millions except per share amounts