Traditional vs. modern SOC: what to expect from a 24×7 SOC

Having a SOC is no longer what sets a company apart. The question that matters today is different: does your SOC turn events into decisions, or does it just generate alerts? Seeing alerts is not the same as reducing risk, and that is exactly where the traditional SOC and the modern SOC part ways.

What a 24×7 SOC does

A SOC is a team of analysts, backed by processes and technology, that continuously monitors the environment to identify and respond to threats. In the vocabulary of the NIST Cybersecurity Framework 2.0, it concentrates the work of the Detect function (finding and analyzing possible attacks and compromises) and the Respond function (taking action on a detected incident).

Day to day, that means:

Collection and correlation. Receiving events from firewalls, antivirus and EDR, servers, cloud, identity and applications, and cross-referencing them to find what no single source shows on its own.
Triage. Separating noise from what deserves investigation, using explicit criteria.
Investigation. Understanding what happened, on which assets and with what scope.
Response. Containing, bringing in whoever needs to act and following through to closure.
Continuous improvement. Tuning detection rules after every incident and every false positive.

The "24×7" is not a detail: a critical event in the early hours of Sunday that is only seen on Monday has already had time to become an incident.

Traditional SOC: alerts and reaction

The traditional SOC played, and still plays, an important role. But it was designed around technical operations, and it tends to show the same symptoms:

Reactive monitoring. The team waits for an alert to fire before acting.
High volumes of alerts with little context. Plenty of warnings, little information about the affected asset and how much it matters to the business.
Reliance on manual analysis. Every repetitive alert takes the same analyst time, every time.
Slow, fragmented responses. Whoever detects is not whoever acts, and hand-offs between teams are informal.
Limited view of impact. The monthly report lists event counts, not risk.

The result is a team that spends more time firefighting than preventing, alert fatigue, long response times and a hard time showing value to the board.

Modern SOC: detection and response with context

The modern SOC does not abandon monitoring; it changes the goal. Instead of "seeing everything", it aims to reduce the real impact of attacks. The differences show up on five fronts:

Cross-layer correlation and risk-based prioritization. A suspicious login on a test workstation and the same login on the payments server do not have the same priority. Asset context is part of triage.
MDR (Managed Detection and Response). The service does not end with a notification: it includes investigation and response actions, such as isolating an endpoint or blocking an account, within rules agreed with the client.
Automation. Alert enrichment and responses to recurring incidents run through playbooks, freeing analysts for work that requires judgment.
Threat hunting. Proactive searching for signs of compromise that have not yet triggered an alert, starting from hypotheses about how an adversary would operate in the environment.
Threat intelligence. Information on campaigns, indicators and techniques in use, applied to detection rules and to hunting.

MITRE ATT&CK is the common reference that ties these fronts together: a public knowledge base of tactics and techniques observed in real attacks. Mapping the SOC's detections against ATT&CK shows, objectively, which attack behaviors the SOC can see and where the gaps are.

What an undetected incident costs

The 2025 edition of IBM's Cost of a Data Breach report put the global average cost of a data breach at USD 4.44 million, down from USD 4.88 million in the 2024 edition. The same study measured the average breach lifecycle at 241 days: about 181 to identify and 60 to contain. IBM attributed the drop in cost largely to faster identification and containment.

The message is clear: time is the main cost multiplier. Every day without detection is another day for the intruder to move, escalate privileges and exfiltrate data.

The cost is not only financial. Operational downtime, fines and lawsuits when customer data leaks, and loss of trust also grow with the time of exposure.

The metrics that matter

Alert counts do not measure the quality of a SOC. These do:

MTTD (mean time to detect). From the start of malicious activity to detection. It is the indicator most closely tied to the cost of an incident.
MTTR (mean time to respond). From detection to containment or resolution. Combined with MTTD, it shows the total exposure time.
False positive rate. Measures the quality of the rules and how much noise the client is receiving.
Source and technique coverage. Which critical systems send events and which ATT&CK techniques have active detection.
Escalations that led to action. How many escalated cases actually led to an action, a gauge of the value of what reaches your team.

How to evaluate an outsourced SOC

Outsourcing the SOC is a common choice: it solves the difficulty of building and retaining a specialized team working 24×7 shifts, provides access to technology and intelligence that would be expensive to build in-house, and keeps the internal team focused on the business. Questions for comparing providers:

What happens after the alert? Does the provider only notify, or also investigate and respond? Which actions can it take without asking for authorization?
How will the sources in my environment be integrated? Ask for the integration plan and which sources are left out.
How are detections mapped? Is there documented coverage against MITRE ATT&CK?
Is there real threat hunting and threat intelligence? How often, and how do the results reach the client?
Which metrics will I receive? MTTD, MTTR and false positives should be in the report, not just event volume.
How does the hand-off to my team work? Who gets called, through which channel, with what information. Align this with your incident response plan.
What governance evidence does the SOC have? Certifications, audited processes and controls over access to your data.

In practice: the Network Secure SOC

The Network Secure SOC is ISO/IEC 27001:2022 certified: the certification, validated by Bureau Veritas, covers the SOC, including monitoring, detection, analysis and incident response. One example of its operation is FitBank, a banking infratech that contracted the service with 24×7 monitoring and the N1 management model: the SOC team filters events and sends what matters to FitBank's IT team, which audits them and takes action. The rollout required integrating many different sources, such as firewall and antivirus, including meetings with the solution vendors. According to Gustavo Ramos, head of infrastructure and security at FitBank, there has been a significant reduction in the number of incidents since the rollout. Learn more about the SOC and MDR service.

Frequently asked questions

What is the difference between a SOC and MDR?

A SOC is the structure of people, processes and technology that monitors and responds to threats. MDR is a managed service model in which the provider delivers detection and also response, not just notification. A modern outsourced SOC usually operates on the MDR model.

Is having a SIEM the same as having a SOC?

No. A SIEM is a tool that collects and correlates events. Without analysts watching 24×7, rules tuned to the environment and a response process, it becomes a repository of alerts that nobody reads in time.

What are MTTD and MTTR?

MTTD is the average time between the start of an attack and its detection; MTTR is the average time between detection and containment or resolution. Together, they indicate how long an intruder has to act in the environment.

Do mid-sized companies need a 24×7 SOC?

They need continuous monitoring and response, because attacks happen outside business hours. For most mid-sized companies, building an in-house team working in shifts is expensive and difficult; an outsourced SOC is usually the most viable path.

Sources consulted: NIST Cybersecurity Framework 2.0 (CSWP 29), Detect and Respond functions; NIST SP 800-61 Rev. 3, Incident Response Recommendations and Considerations for Cybersecurity Risk Management; MITRE ATT&CK; IBM, Cost of a Data Breach Report 2025 (global average cost and breach lifecycle). The IBM figures refer to the 2025 edition and change every year. This article is educational; the suggested questions do not replace a technical assessment of your environment.