Cybersecurity & Network Security — Southern California
Security that's watched, not just installed.
Most breaches don't start with something exotic — they start with an unpatched system, a stolen login, or a convincing email. TNS defends all three with layered, actively managed security across your endpoints, identities, email, and network — monitored around the clock by a live operations team. Every control is a managed service backed by people, not a tool we hand you and walk away from.
Layered defense, end to end.
Endpoint security
Behavior-based protection on every covered workstation and server, catching what traditional antivirus misses and containing threats before they spread.
- Managed Endpoint Detection & Response (EDR)
- Behavioral threat detection, not just signatures
- Ransomware detection and rapid containment
- Isolate a compromised device in one action
Identity & access security
Attackers increasingly log in rather than break in. We secure the identity layer where modern Microsoft 365 attacks actually happen.
- Identity Threat Detection & Response (ITDR)
- MFA and Conditional Access management
- Stolen-session and account-takeover detection
- Automated account isolation on compromise
Email & collaboration security
Email is the most common entry point for attacks. We layer advanced protection inside Microsoft 365 to catch what native filtering lets through.
- Advanced anti-phishing and malware defense
- Business-email-compromise (BEC) protection
- Post-delivery removal of malicious messages
- Coverage across email, Teams, and file sharing
Network security
We manage the security of the network your business runs on, from the firewall at the edge to the devices inside it.
- Firewall configuration and management
- Network device monitoring and hardening
- Secure remote access
- Segmentation and access control
Watched around the clock by a live team.
Threats don't keep business hours, so neither do we. Two complementary operations functions watch your environment 24/7/365 — one focused on keeping your systems and network healthy, the other on catching and stopping security threats.
24/7 Network Operations Center (NOC)
Our live NOC continuously monitors the health and availability of your servers, network devices, and critical systems — catching outages, capacity issues, and failures early, often before they interrupt your team.
24/7/365 Security Operations Center (SOC)
A dedicated security operations center triages and human-validates security alerts across your endpoints and identities around the clock. Real analysts confirm real threats before they reach you — no console dumped in your lap to interpret.
The controls behind the coverage.
Layered defense means no single point of failure. Each control below addresses a specific way businesses get breached — and each one is actively managed and monitored, not just licensed.
Managed Endpoint Detection & Response (EDR)
Behavior-based endpoint protection that detects what an attacker is doing rather than only recognizing known malware — with detection, containment, and guided remediation.
Identity Threat Detection & Response (ITDR)
Protection for the Microsoft 365 identity layer, catching stolen-session and account-takeover attacks that bypass MFA, with automated session revocation on confirmed compromise.
Email & Collaboration Security
Advanced protection that works inside Microsoft 365 to stop phishing and business-email-compromise, and to pull malicious messages from every inbox they reached — including internal ones.
Patch & Vulnerability Management
Unpatched systems are now a leading cause of breaches. Our measured, reported patch program includes pilot-ring testing, enforced reboots, and expedited handling of actively exploited vulnerabilities.
Security Awareness Training
Technology stops most attacks; the rest reach a person. Short, ongoing training paired with realistic phishing simulations measurably lowers click rates and gives you the completion records auditors and insurers ask for.
Backup & Recovery
The control that assumes an attack succeeds. Immutable, credential-separated backups with monitored jobs and verification restores, so ransomware can't take your recovery points with your data.
What you get with Cybersecurity & Network Security.
Security-first by default
Security isn't an add-on you discover you needed after an incident. It's embedded in how we run your technology every day, across every layer.
Human-validated alerts
A live security operations team reviews and confirms threats around the clock, so you're not drowning in false alarms or missing the real one.
Rapid containment
When a threat is confirmed, we can isolate a compromised device or account and revoke active sessions immediately — stopping spread without waiting for a site visit.
Cyber-insurance alignment
Carriers now require proof of specific controls. Our stack is built so you can answer renewal applications honestly and affirmatively — EDR, MFA, monitoring, tested backups, and more.
Documented and evidenced
Asset inventories, security baselines, patch compliance, and training completion are documented and reported — the evidence you need when it's asked for.
Aligned to a proven framework
Our approach maps to established security best practices — identify, protect, detect, respond, and recover — so nothing critical is left uncovered.
Simple to get started.
Assess & baseline
We review your current security posture across endpoints, identity, email, and network, identify the gaps that matter most, and establish a secure baseline.
Deploy & harden
We deploy managed security controls, establish MFA and Conditional Access, begin patch cycles, and configure monitoring so your environment is defended and visible.
Monitor & respond
Our operations centers watch your environment 24/7. When a threat is confirmed, we contain it fast — then report what happened and what changes to prevent a repeat.
When it's urgent, we treat it that way.
Not every issue is equal. We prioritize by impact, so a server outage never waits behind a routine request.
Response time is time to initial engagement, not resolution. These are objectives, not guarantees, unless defined in a formal SLA. Monitoring and critical security response operate 24/7/365.
What this means for your business.
- A continuously monitored, defensible security posture
- Threats caught and contained around the clock
- Confident, honest answers on insurance and audits
- Fewer incidents, and faster recovery when they happen
Explore other services
Managed IT & Helpdesk
Day-to-day IT support and management, with a responsive helpdesk your team can actually reach.
Cloud & Microsoft 365
Migration, management, and optimization of Microsoft 365 and cloud infrastructure.
Backup & Disaster Recovery
Reliable backups and a tested recovery plan so a bad day never becomes a lost business.
Network & Infrastructure
Design, deployment, and management of the network your business runs on.
Want to talk this through?
Tell us what your business needs and we'll show you how we'd approach it.
Request a free consultation