Security reviews for the offices at the center of Orange County
Santa Ana is the county seat, with courts, government offices and the law and professional firms that serve them. Costa Mesa adds a mix of corporate offices, retail headquarters, manufacturers and service businesses near South Coast Metro.
Many of these offices have grown over years, so we often find older firewalls, shared administrator accounts, flat networks and servers past end of life. Our audits list each issue by risk and give your IT team or provider a clear order of work.
Both cities are close to our Irvine headquarters, which makes on-site walkthroughs and in-person reviews simple to schedule.

Cybersecurity services for Costa Mesa and Santa Ana businesses
Fixed-price audits and written scopes. See all prices on the pricing page.
Microsoft 365 security audit
200 checks across identity, admin access, email, SharePoint and Teams, data protection, logging and devices.
Fixed price: $3,500See the service →
Firewall security audit
Rules, open ports, VPN, logging and firmware on Palo Alto, Cisco, Meraki and other firewalls.
Fixed price: $3,500See the service →
Network, router and switch audit
Management access, segmentation, end-of-life devices, logging and configuration backups.
Fixed price: $3,500See the service →
Vulnerability assessment
Internal and external scanning, false positives removed, findings ranked by real exploitability.
Starting at $3,500See the service →
Compliance readiness
HIPAA, PCI DSS, SOC 2, NIST CSF, ISO 27001, CCPA and IRS WISP gap assessments with the evidence auditors ask for.
Starting at $3,500See the service →
Virtual CISO
Security strategy, risk register, policies and board reporting without a full-time executive hire.
Starting at $3,500 per monthSee the service →
Central Orange County businesses we commonly help
Law firms near the courts, manufacturers, nonprofits and accounting practices each have different requirements.

Law firms
Client confidentiality, wire fraud and email account takeover.

Manufacturing and distribution
Plant networks, ERP access, vendor remote access and ransomware recovery.

Nonprofit organizations
Donor data, volunteer accounts and grant or board security requirements.

CPA, tax and financial firms
IRS WISP, FTC Safeguards Rule and client portal security.
We walk the network, not just the questionnaire
On-site visits cover the network closet, firewall, switches and server room, and a findings review with your leadership. Cloud and Microsoft 365 testing runs remotely.
For organizations with several sites in central Orange County, we review each site against one standard and report them together.
Where we work in central Orange County
On-site visits across Costa Mesa, Santa Ana and nearby cities, including:
How a central Orange County engagement works
Consultation
A short call to understand your environment, deadlines and what prompted the review.
Scope and quote
A written scope and fixed quote before any work starts.
Read-only review
We review settings and evidence with read-only access, on-site or remote.
Report
Executive summary, technical findings and a risk register ranked by severity.
Roadmap
A practical remediation plan your IT team or provider can act on.

Guided by Ali Hassani, CISO
Every review is led by Ali Hassani, a CISO with more than 25 years of IT and cybersecurity experience, and written so owners, partners and IT teams can act on it.
- Certified CISO (C|CISO) and CISSP
- 25+ years in IT, networking and cybersecurity
- Microsoft and Cisco certifications, including CCNP, CCNA, MCSE, MCITP and MCSA Security
- Headquarters in Irvine; on-site across Orange County, Los Angeles and Southern California; remote nationwide
Questions about cybersecurity services in Costa Mesa and Santa Ana
Do you work on-site in Costa Mesa and Santa Ana?
Yes. Both cities are close to our Irvine headquarters, so on-site walkthroughs and findings reviews are easy to schedule.
Our firewall and servers are several years old. Is that a problem?
Often, yes. Devices past end of support stop receiving security fixes. The firewall security audit and the Active Directory and Windows Server audit identify unsupported systems and rank the risk.
Can you help a law firm protect client confidentiality?
Yes. We review email security, document access, remote access and backups, and help firms show clients and insurers how confidential information is protected.
How much does a cybersecurity audit cost?
The Microsoft 365, Entra ID, Azure, Intune, firewall, Cisco network, Cisco Meraki, Palo Alto, Active Directory, internal and AI security audits are $3,500 fixed. Vulnerability assessments, compliance readiness and vCISO engagements start at $3,500. See the pricing page.
Do you work with nonprofits?
Yes. We help nonprofits protect donor data and meet board, grant and insurance security expectations, with a scope sized to the organization.
Do you also fix the findings?
We stay independent and do not implement our own findings. IT Perfection or your current IT provider can work from the remediation roadmap.
Related services and pages
Need the gaps fixed, not just found?
OC Security Audit stays independent and read-only. If you want hands-on administration, IT Perfection can implement the fixes and support ongoing operations. Your current IT provider can also work from the same roadmap.

Schedule a cybersecurity consultation in central Orange County
Tell us about your office, network and deadlines. We will suggest the right first audit and send a written scope.
Independent and read-only. Headquarters in Irvine, California; on-site across Orange County and Southern California; remote nationwide.


