What changed 10-K

Item 1B. Unresolved Staff Comments

2026-02-09 compared with 2025-02-12 · 1 added, 1 removed, 48 unchanged (4% of the section changed)

16 unchanged sentences

The CISO also works closely with AT&T Legal to oversee compliance with legal, regulatory and contractual security requirements.

The CISO has extensive technical leadership experience and cybersecurity expertise, gained from approximately 20 years of experience, including serving as the Chief Information Security Officer and Director of the Office of Cybersecurity at a U.S.

The CISO has extensive technical leadership experience and cybersecurity expertise, gained from over 20 years of experience, including serving as the Chief Information Security Officer and Director of the Office of Cybersecurity at a U.S.

government agency, in addition to serving as the Chief Information Security Officer of two large public companies.

30 unchanged sentences

Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.