Managed SOC for Defense Contractors

Managed SOC for Defense Contractors

A defense contractor has to watch its systems, spot trouble, and report serious incidents to the DoD on a clock. Most companies under 500 people do not have analysts to do that around the clock. A managed SOC fills that gap. Here is what it does, which requirements it supports, and how to choose one.

What a Managed SOC Is

A security operations center, or SOC, is the team and the tools that watch an organization’s systems for attacks. In a managed SOC, an outside provider runs that team for you. Analysts review logs and alerts from your servers, endpoints, cloud services, and network, and they decide what is a real threat and what is noise. When something is real, they tell your team or help contain it.

The labels vary from one provider to the next, so here is how they are usually used.

Ask what is included before you compare any two quotes. Some providers only watch and send alerts. Others investigate, contain, and report back.

What CMMC and DFARS Ask For

No requirement says you must have a SOC. The requirements say you must log activity, watch for attacks, handle incidents, and report them. A SOC is a common way to do those things. Here is how the work lines up with NIST SP 800-171 Revision 2, the version CMMC uses today.

DFARS 252.204-7012 adds a deadline. The clause defines rapid reporting as within 72 hours of discovering a cyber incident. Reports go to DoD through the DIBNet portal, and the contractor needs a DoD-approved medium assurance certificate to file one. The clause also requires you to preserve images of the affected systems for at least 90 days after the report.

That clock starts at discovery, so how fast you notice matters. Our post on incident response and backup testing covers what to practice before you need it. Our guide to CMMC Level 2 shows how these requirements fit into the full list of 110.

What a Good Managed SOC Delivers

Good providers also give you reports you can hand to an assessor, such as logs reviewed, incidents handled, and tests completed. That record is evidence, and assessors ask for evidence. See how Sentinel Blue approaches this on our CMMC security operations center page and in the Overwatch solution brief.

Build Your Own SOC or Buy One

An in-house SOC needs analysts, tools, and a schedule that covers nights, weekends, vacations, and sick days. One person on call is not a SOC. Covering every hour takes several people per seat, plus the tools and training to keep them effective. Most small and mid-size contractors cannot justify that, which is why they outsource.

Outsourcing has its own risks. You give up some control, and you depend on the provider’s quality. The questions below help you test that before you sign.

Where Your Logs Live

A SOC works by collecting your security data, and that data can include sensitive details about your systems and sometimes CUI. The CMMC rule defines an External Service Provider as outside people, technology, or facilities that provide and manage IT or cybersecurity services for you, and it ties that status to CUI or security protection data being processed, stored, or transmitted on their assets.

In plain terms, the provider you pick can become part of your assessment scope. Ask where your logs are stored, who can reach them, how long they are kept, and how the provider protects its own environment. If you use Microsoft’s government cloud, our page on Microsoft Sentinel shows how a SIEM fits there.

Questions to Ask a SOC Provider

1. Do you work with CMMC and DFARS requirementsAsk how the service maps to the requirements above and for examples from defense clients.
2. What do you do when you find a real threatGet the answer in writing. Alert only, containment, or full response are three different services.
3. How fast do you escalateAsk for time limits by severity, and ask who you hear from.
4. Where are my logs stored, and who can see themAsk for the location, the access list, and the retention period.
5. How do you help with the 72-hour reportA good provider helps you gather facts, preserve images, and file on time.
6. What reports do I getAsk for a sample you could show an assessor.
7. Which of my systems will you watchThe scope should match your CMMC boundary.
8. What happens to the data if we leaveAsk how logs and records are returned or deleted.

Red Flags

• A promise that you will never be breached.
• No written time limits for escalation.
• Vague answers on where your logs are stored.
• A service that only forwards alerts and calls it monitoring.
• No experience with defense contractors or CMMC.
• A price that does not say what is included.

What a Managed SOC Costs

We do not print a price range, because published numbers come mostly from vendors and differ too much to trust. Price follows the number of users and devices, the number of log sources, how much data you generate, the hours covered, and whether response work is included. Ask for a written scope, then compare quotes on what each one covers.

Cost also connects to the rest of your program. A SOC watches your systems, and someone still has to decide what the risks are and keep your documents current. Our posts on virtual CISO services and managed CMMC compliance cover those pieces.