01Microsoft and Identity
Microsoft 365 and Office 365
Identity, mail, file sharing, Teams, Purview, Defender, audit logging, and endpoint access controls.
Open technical guide
Security Implementation Guide Library
Harden Microsoft 365, Cloud, and Network Security With 20 Technical Guides.
Give administrators a practical starting point for hardening the systems attackers target most: Microsoft 365, identity, Active Directory, DNS, DHCP, firewall, router, switch, wireless, VPN, endpoint, Windows, patching, backup, file server, SIEM, email security, cloud, and monitoring controls.
20 Technical GuidesMicrosoft 365, identity, network, endpoint, server, backup, cloud, email, and monitoring controls.
Exact SettingsAdmin locations, configuration areas, policy paths, and control checks administrators can verify.
Evidence ReadyWhat to review, what to retain, and how to prioritize remediation after the technical review.
Practical Technical Library
Start with the control area that creates the most risk.
Each guide is written for practical implementation and review work. The goal is to help administrators understand what should be configured, where to look, what evidence to retain, and which controls deserve priority during a security audit, cyber insurance review, compliance readiness project, or remediation plan.
20 Technical Guides
Choose the platform, service, or control family you need to harden.
Search by platform, setting, risk area, or technology. Each guide opens into a deeper implementation page with exact controls and evidence guidance.
02Microsoft and Identity
Microsoft Entra ID
MFA, Conditional Access, privileged roles, app consent, identity protection, and sign-in evidence.
Open technical guide03Microsoft and Identity
Active Directory Domain Services
Domain controllers, administrative tiers, Kerberos, LDAP, GPOs, replication, auditing, and recovery evidence.
Open technical guide04Core Network Infrastructure
DNS Server
Recursion, zone transfers, dynamic updates, forwarding, logging, DNSSEC planning, and name-resolution exposure.
Open technical guide05Core Network Infrastructure
DHCP Server
Scope governance, authorization, lease auditing, reservations, failover, rogue detection, and network evidence.
Open technical guide06Core Network Infrastructure
Firewall
Rule cleanup, segmentation, VPN exposure, NAT, management access, logging, alerting, and change control.
Open technical guide07Core Network Infrastructure
Router
Management access, routing protections, ACLs, SNMP, syslog, firmware, backups, and configuration evidence.
Open technical guide08Core Network Infrastructure
Switch
VLANs, trunks, port security, STP protections, NAC, management access, logging, and configuration review.
Open technical guide09Core Network Infrastructure
Wireless Controller
WPA3, 802.1X, guest isolation, SSID governance, controller administration, and rogue AP detection.
Open technical guide10Core Network Infrastructure
VPN and Remote Access
MFA, posture checks, split tunneling, admin access, vendor accounts, session logging, and remote evidence.
Open technical guide11Endpoint, Server, and Operations
Endpoint and EDR
Onboarding, tamper protection, attack surface reduction, device control, isolation, detections, and alert routing.
Open technical guide12Endpoint, Server, and Operations
Windows Server
Local admin control, security baselines, RDP, services, event logs, patching, backups, and hardening evidence.
Open technical guide13Endpoint, Server, and Operations
Windows Client
BitLocker, local admin removal, Defender, ASR rules, browser controls, application control, and device evidence.
Open technical guide14Endpoint, Server, and Operations
Patch Management
Asset coverage, deployment rings, emergency patching, exception handling, rollback, and compliance reporting.
Open technical guide15Endpoint, Server, and Operations
Backup and Disaster Recovery
Immutability, encryption, access control, retention, restore testing, monitoring, and recovery evidence.
Open technical guide16Endpoint, Server, and Operations
File Server and Shared Folders
NTFS permissions, share access, auditing, owner review, sensitive data exposure, and recovery validation.
Open technical guide17Endpoint, Server, and Operations
SIEM and Log Management
Log source onboarding, alert routing, retention, parsing, time sync, use cases, and investigation evidence.
Open technical guide18Endpoint, Server, and Operations
Email Security Gateway
Anti-phishing, SPF, DKIM, DMARC, safe attachments, spoof defense, quarantine, logging, and evidence.
Open technical guide19Cloud, Monitoring, and Recovery
Cloud Infrastructure: Azure and AWS
IAM, exposed services, network controls, logging, encryption, posture management, backups, and evidence.
Open technical guide20Cloud, Monitoring, and Recovery
RMM and Network Monitoring
Admin access, agents, alerts, credentials, remote control, vendor risk, logging, and operational evidence.
Open technical guideHow To Use The Library
Turn technical settings into a defensible implementation plan.
A good control review is not only a checklist. It needs scope, configuration validation, exceptions, evidence quality, ownership, and follow-through.
1. Pick the control family
Start with the platform or service that carries the highest exposure, such as identity, firewall, VPN, backup, or email security.
2. Review exact settings
Use the guide to identify configuration areas, policy locations, logging, evidence, and exceptions that need validation.
3. Document evidence
Retain screenshots, exports, change records, sign-in or event logs, policy reports, and owner approvals where they support the control.
4. Prioritize remediation
Separate dangerous misconfigurations from baseline cleanup so the team fixes the controls that reduce the most risk first.
Technical Review Led By Experience
Ali Hassani, CISO, brings audit, infrastructure, and security operations context together.
These guides are aligned with the way real environments are reviewed: identity paths, administrative access, network segmentation, endpoint controls, logging, recovery, cloud exposure, and the evidence needed to support decisions. Ali’s background includes 25+ years across IT operations, cybersecurity, Microsoft infrastructure, compliance, network security, and infrastructure administration.
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When the guide identifies a gap, turn it into a controlled remediation path.
OC Security Audit can help review security controls, validate evidence, and prioritize risk-based findings. When a finding requires implementation work, operational support, Microsoft 365 administration, Azure support, endpoint work, backup changes, server hardening, or network remediation, the next step should be planned carefully with clear ownership and change control.
FAQ
Security implementation guide questions
Use the answers below to decide where the library fits into an audit, assessment, or remediation process.
Who should use these security implementation guides?
These guides are built for IT administrators, IT managers, CISOs, auditors, and technical teams that need exact settings, review areas, and evidence expectations across Microsoft 365, identity, network, endpoint, server, cloud, backup, logging, and email security.
How are the guides organized?
Each guide focuses on one platform or infrastructure area, then breaks the work into security domains, technical controls, configuration locations, what to check, and evidence to retain.
Do these guides replace a professional cybersecurity audit?
No. They are practical technical references for implementation planning and internal review. A professional audit validates scope, risk, evidence quality, compensating controls, and business impact.
Where should an administrator start?
Start with the area that could create the highest immediate risk: identity and privileged access, internet-facing network controls, remote access, endpoint protection, backup recovery, and logging visibility.