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Cornerstone Systems Group perspectives on Microsoft-native delivery, federal civilian and California SLED public-sector implementation, cybersecurity readiness, and documentation-first execution for regulated programs.

May 23, 2026

Hardening Our Own Microsoft 365 Tenant: Six Controls, Secure Score 84 → 100

Before hardening client tenants, CSG hardened its own. Six controls applied to the operator Microsoft 365 environment lifted Secure Score from 84 to 100.

M365Compliance PostureNIST 800-53CMMCReference Architecture
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CSG Cornerstone Systems Group

Microsoft-native delivery for federal civilian, California SLED, and B2B enterprise buyers.

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Contact admin@cornerstonesystemsgroup.com (213) 212-4999
835 Wilshire Blvd
Suite 500, #650
Los Angeles, CA 90017
Procurement Identifiers

For buyer verification on SAM.gov (System for Award Management).

Legal entity
Cornerstone Systems Group, LLC · California
Primary NAICS
541512 — Computer Systems Design Services
Secondary NAICS
541511 · 541519 · 541611 · 541618 · 541614 · 611420 · 518210
SAM.gov registration
In Progress · UEI and CAGE pending issuance

Status current as of May 28, 2026

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