What Are Cybersecurity Services? Types, Technologies, and Tools

Every connected system can add another point of exposure. Cybersecurity services help monitor and protect these points. They secure networks, endpoints, applications, identities, cloud environments, and data. Let’s take a look at the technical services used to protect each layer.

What Do Cybersecurity Services Cover?

Cybersecurity is not a single tool or platform. It includes multiple technical security functions that work across an IT environment.

Network Security

Network security controls how data moves between systems and networks. Firewalls inspect network traffic and apply access rules. IDS detects suspicious network activity and generates alerts, while IPS can detect and block malicious traffic.

Common network security controls include:

• Firewalls
• IDS and IPS
• VPNs
• Network segmentation
• Network Access Control
• DNS security
• Secure Web Gateways

These controls restrict unauthorized traffic and limit lateral movement between network segments.

Endpoint Security

Endpoints cover a wide range of connected devices, such as laptops, desktops, and servers. A security breach on one of these systems can give attackers a starting point. They may then deploy malware, capture credentials, or access other network systems. Endpoint security tools monitor activity on these devices.

Common technologies include:

• Endpoint Detection and Response (EDR)
• Antivirus and anti-malware
• Host-based firewalls
• Application control
• Device control
• Endpoint monitoring

EDR platforms collect telemetry about processes, files, network connections, and user activity. Security teams can analyze this data to identify suspicious behavior and investigate potential threats.

Identity and Access Management

Identity and Access Management (IAM) controls who can access systems and what they are authorized to do. IAM commonly uses:

• Multi-Factor Authentication (MFA)
• Single Sign-On (SSO)
• Role-Based Access Control (RBAC)
• Privileged Access Management (PAM)
• Access policies
• Identity lifecycle management

The process authenticates the identity, evaluates access conditions, and grants the required permissions. These controls help prevent unauthorized access and reduce excessive privileges.

Cloud Security

Cloud environments introduce additional security requirements. Cloud resources can be created, modified, and removed quickly. Access is also distributed across users, services, applications, APIs, containers, and workloads. Cloud security protects these resources through controls such as:

• Cloud Security Posture Management (CSPM)
• Cloud workload protection
• Identity and entitlement management
• Container security
• Kubernetes security
• Cloud configuration monitoring
• Cloud firewalls

These controls help identify exposed resources, insecure configurations, excessive permissions, and vulnerable workloads.

Application Security

Applications require security controls because software flaws can be exploited. Such exploitation may provide unauthorized access, enable harmful operations, or result in data manipulation. Application security embeds testing and security measures into the software development lifecycle to identify and address these weaknesses.

Common methods include:

• Static Application Security Testing (SAST)
• Dynamic Application Security Testing (DAST)
• Interactive Application Security Testing (IAST)
• Software Composition Analysis (SCA)
• API security testing
• Dependency scanning
• Code review

These methods can identify security issues in application code, APIs, libraries, dependencies, and runtime behavior.

Vulnerability Management

Identifying vulnerabilities is only one part of vulnerability management. The process also focuses on assessing and resolving those weaknesses before they are exploited. Security teams first discover assets and scan them for known vulnerabilities. They classify the results and evaluate their risk. Remediation is then prioritized. Patches or fixes are applied, followed by validation scans.

Common vulnerability data includes:

• CVE identifiers
• Severity ratings
• Affected software versions
• Exploit availability
• Asset exposure
• Remediation status

Risk-based prioritization helps security teams focus remediation efforts on vulnerabilities that present the greatest exposure.

Security Information and Event Management (SIEM)

Security Information and Event Management (SIEM) platforms collect security logs and events from different systems into a centralized environment. A SIEM can collect events from:

• Firewalls
• Servers
• Endpoints
• Applications
• Cloud platforms
• Identity providers
• Network devices

The platform correlates these events and applies detection rules to identify suspicious activity.

For example, a SIEM can correlate multiple failed authentication attempts with a successful login from an unusual location. This activity can generate an alert for further investigation.

Extended Detection and Response (XDR)

XDR brings security data from multiple IT layers into a connected view. It combines signals from endpoints, networks, identities, and cloud environments. This removes the need to examine each source in isolation. XDR correlates related events to reveal connections between activities. This gives security teams more context during incident investigations and helps identify events that may be part of the same attack.

Incident Response

Preventive security controls cannot eliminate every security incident. Incident response provides the processes required to detect, investigate, contain, and recover from suspicious or malicious activity. The process generally includes:

• Detection
• Triage
• Investigation
• Containment
• Eradication
• Recovery
• Post-incident analysis

Response actions may include isolating an endpoint, disabling a compromised account, blocking malicious traffic, removing malware, or restoring affected systems.

How Do Cybersecurity Services Work Together?

Cybersecurity services work as multiple security layers across an IT environment.

IAM controls identity and access. Network security controls communication. Endpoint security monitors devices. Application security addresses software vulnerabilities. Cloud security protects cloud resources. Vulnerability management identifies weaknesses. SIEM and XDR correlate security events across different environments.

For example, an attacker may compromise a user account, access an endpoint, move through the network, and attempt to reach an application. Multiple security controls can detect activity at different stages of this attack path.

IAM can restrict account access. Endpoint security can detect suspicious processes. Network controls can limit lateral movement. Application security can identify vulnerable components. SIEM and XDR can correlate related events for investigation. Incident response can then contain and remediate the affected systems.

Conclusion

Security must extend across the entire IT environment. Cybersecurity services provide controls for different technology layers. They secure network communication, endpoint devices, user identities, applications, and cloud resources. They also help manage vulnerabilities and security events.

These controls become more effective when integrated. Security teams gain broader environmental visibility. Suspicious activity becomes easier to identify. Unauthorized access can be restricted. Threat investigations and incident response can also become more effective.

Tetrahed provides cybersecurity services covering network, endpoint, cloud, application, identity, and data security. Its solutions use technologies such as IAM, EDR, SIEM, XDR, vulnerability management, and incident response to secure modern IT environments.