AT&T INC.
ent_019e221aeeb84c86ded17a99262202f6
Disclosures
4
SEC 10-K Item 1C · Leak Site · SEC 8-K · 2 jurisdictions
Incidents
—
no linked incident in sample
Max affected reported
—
no filed count in sample
Leak-site claims
2
unverified actor claims
Identity resolution
- Canonical name
- AT&T INC.
- Normalized
- at t— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- 81560046090960AF7A65
- SEC EDGAR CIK
- 0000732717
- Domain
- att.com
Disclosure history (4)newest first
- FEDERALSEC 10-K Item 1Cas victim2026-02-09
AT&T Inc. (CIK 732712) filed its 2025 10-K (Item 1C) stating it did not identify any cybersecurity risks that materially affected or are reasonably likely to materially affect its business, strategy, results of operations, or financial condition in 2025. The filing details robust governance, including a Chief Security Office (CSO) and CISO oversight, and a comprehensive risk management program.
- GLOBALLeak Siteas victim2025-10-21
AT&T Careers is the employment division of AT&T, an American multinational conglomeric communications company. It offers opportunities in various fields including technology, sales, marketing, customer service, cybersecurity. The company seeks individuals interested in the tech industry with drive for innovation. Roles include internships, entry-level, management, and more experienced positions. It provides competitive benefits and a diverse, inclusive workplace.
- FEDERALSEC 8-Kas victim2024-07-12
On April 19, 2024, AT&T learned a threat actor had unlawfully accessed an AT&T workspace on a third-party cloud platform and, between April 14 and April 25, 2024, exfiltrated call/text interaction records for nearly all AT&T wireless and MVNO customers covering May 1–October 31, 2022 and January 2, 2023. Records included phone numbers, interaction counts, aggregate durations, and some cell-site IDs, but no call content, SSNs, or DOBs. AT&T contained access; DOJ twice authorized 1.05(c) disclosure delays.
- GLOBALLeak Siteas victim2022-10-28
Subsidiary disclosures (1)filed by group companies
◈ These filings were made by or about subsidiaries of AT&T INC. — not by AT&T INC. itself. Corporate relationships are mapped from GLEIF relationship records and SEC Exhibit 21 filings.