LevelBlue

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LevelBlue
FormerlyAT&T Cybersecurity (2019-2024), AlienVault (2007–2019)
IndustryManaged security services, Managed security service provider (MSSP), Cybersecurity Consulting, XDR
FounderRobert McCullen (CEO, chairman)[1]
HeadquartersDallas, Texas, US
Websitewww.levelblue.com

LevelBlue (formerly AT&T Cybersecurity[2][3][4]) is a managed security service provider (MSSP). The company was established as a joint venture between AT&T and the cybersecurity investment firm WillJam Ventures and launched as an independent business at the RSA Conference in 2024. LevelBlue provides managed security services, consulting, and threat intelligence.

In November 2025, it was announced LevelBlue had completed the acquisition of the American cybersecurity technology company, Cybereason for an undisclosed amount.[5]

References

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