Cybersecurity Does Not Stop When Your Business Closes
Many businesses operate during normal business hours.
Cybercriminals do not.
An attacker can attempt to compromise an account at midnight, deploy malware on a weekend or begin moving through a network while employees are away.
This creates a fundamental challenge for businesses that rely entirely on internal IT staff for cybersecurity monitoring.
IT teams have many responsibilities.
They manage:
- Computers
- Servers
- Networks
- Microsoft 365
- Users
- Applications
- Backups
- Cloud services
- Hardware
- Help desk requests
Cybersecurity adds another layer.
Someone needs to monitor security events, investigate suspicious behavior, identify attacks and respond quickly.
For many organizations, building a dedicated 24/7 security operation internally is expensive and difficult.
This is where an MSSP and managed detection and response service can provide significant value.
What Is 24/7 Security Monitoring?
24/7 security monitoring means cybersecurity events are monitored continuously rather than only during business hours.
Security monitoring can include:
- Endpoint activity
- Network activity
- Firewall events
- Authentication
- Microsoft 365
- Cloud activity
- Security alerts
- Malware detections
- Suspicious user behavior
The objective is to detect threats as early as possible.
Why Traditional Antivirus Is Not Enough
Antivirus remains useful, but modern cybersecurity requires more than signature-based malware detection.
Attackers can use:
- Stolen credentials
- Phishing
- Legitimate administrative tools
- Remote access
- Social engineering
- Exploited vulnerabilities
- Cloud account compromise
Some attacks may not begin with obvious malware.
An attacker may simply log into a legitimate account.
That is why modern security programs need visibility across identity, endpoints, cloud applications, email and network activity.
The Role of EDR
Endpoint Detection and Response (EDR) provides visibility into endpoint activity.
Rather than simply asking:
“Is this file a known virus?”
EDR can examine behavior.
For example:
- A user opens an attachment.
- A script launches.
- PowerShell executes.
- A process attempts to access credentials.
- The endpoint connects to a suspicious destination.
The combination of events may indicate malicious activity.
An MSSP can monitor EDR alerts and investigate suspicious behavior.
The Role of MDR
Managed Detection and Response (MDR) adds human security expertise to security technology.
The process can look like:
Security technology detects → analyst investigates → threat is validated → response begins → customer is notified
This is substantially different from simply forwarding an automated alert to the customer.
For businesses without an internal SOC, MDR can provide access to security monitoring and response capabilities without hiring an entire security team.
Why Human Analysis Matters
Automated security systems are extremely useful.
But organizations can generate enormous numbers of alerts.
A business needs someone who can determine:
What happened?
Is it malicious?
How serious is it?
What systems are affected?
What account is involved?
What should happen next?
Security analysts provide that interpretation.
What Happens During a Typical Security Incident?
Consider a hypothetical business email compromise.
Step 1: Credential theft
An employee enters credentials into a phishing website.
Step 2: Account compromise
The attacker signs into Microsoft 365.
Step 3: Reconnaissance
The attacker reviews email and documents.
Step 4: Persistence
The attacker attempts to establish continued access.
Step 5: Business email compromise
The attacker sends fraudulent messages.
Without monitoring, this activity could continue unnoticed.
With appropriate security monitoring, unusual authentication and account activity may trigger investigation.
Incident Response Needs to Be Planned Before the Incident
One of the biggest mistakes businesses make is waiting until an attack occurs to decide what they are going to do.
An incident response plan should establish:
- Who makes decisions
- Who contacts the MSSP
- Who contacts management
- Who contacts legal counsel
- Who communicates with customers
- Who handles insurance
- Who coordinates recovery
- Who has authority to isolate systems
NIST’s incident-response guidance specifically emphasizes preparation and integrating incident response into cybersecurity risk management.
Backups Are Part of Cybersecurity
Security monitoring cannot replace backups.
A business should have reliable backups for critical information and should regularly test recovery.
Important backup principles include:
- Separate copies
- Appropriate access controls
- Offsite storage
- Protection from unauthorized deletion
- Recovery testing
The Canadian Centre for Cyber Security recommends backup and recovery planning and emphasizes maintaining appropriate copies and testing recovery.
CISA also recommends businesses consider backup security when working with managed service providers.
MFA Is a Fundamental Security Control
Multi-factor authentication (MFA) provides another layer of protection if a password is compromised.
For example:
Password + authentication factor
is stronger than:
Password alone
Businesses should prioritize MFA for:
- Microsoft 365
- VPN
- Remote access
- Administrator accounts
- Cloud services
- Financial systems
CISA recommends using MFA wherever possible and encourages businesses to use phishing-resistant methods where available.
Vulnerability Management and 24/7 Monitoring Work Together
Monitoring tells you when suspicious activity occurs.
Vulnerability management attempts to prevent attackers from exploiting weaknesses in the first place.
A mature MSSP program can therefore combine:
Vulnerability scanning
- Patch management
- EDR
- MDR
- SIEM
- 24/7 monitoring
- Incident response
This creates multiple layers of defense.
What Should an MSSP Monitor?
An organization should consider monitoring:
Endpoint
- Laptops
- Desktops
- Servers
Identity
- Microsoft Entra ID
- Administrator accounts
- Authentication events
- MFA activity
- Phishing
- Suspicious messages
- Account compromise
Network
- Firewalls
- VPN
- Network traffic
- Suspicious connections
Cloud
- Azure
- AWS
- SaaS platforms
Applications
- Critical business applications
- Security-sensitive systems
Why Log Management Matters
Security logs provide evidence about what happened.
Logs can help security teams:
- Investigate incidents
- Identify attack timelines
- Determine affected systems
- Identify compromised accounts
- Support forensic analysis
- Meet certain retention requirements
CISA recommends centralized logging and appropriate log retention, while Canadian Cyber Centre guidance recommends that businesses understand their logging requirements and their provider’s retention policies.
What Does 24/7 MSSP Monitoring Actually Look Like?
A mature managed security operation can follow a process such as:
Detect
A security system identifies suspicious activity.
Analyze
A security analyst investigates the event.
Validate
The analyst determines whether the event represents a genuine threat.
Prioritize
The incident is classified based on severity.
Contain
Appropriate systems or accounts may be isolated.
Notify
The customer is informed according to the agreed escalation process.
Remediate
The threat is removed.
Recover
Systems are restored.
Review
The root cause and lessons learned are documented.
Improve
Security controls are adjusted to reduce the likelihood of recurrence.
This approach aligns with the broader NIST approach to identifying, protecting, detecting, responding and recovering from cybersecurity risk.
How Much Security Does a Business Actually Need?
There is no universal cybersecurity package.
A 15-person professional-services company does not have the same requirements as a 500-person manufacturer.
Security requirements depend on:
- Number of employees
- Number of devices
- Data sensitivity
- Industry
- Regulatory requirements
- Remote workforce
- Cloud usage
- Cyber insurance
- Risk tolerance
- Existing IT infrastructure
The goal should be an appropriate security program rather than simply buying every available cybersecurity product.
Questions to Ask an MSSP About 24/7 Monitoring
Before selecting a provider, ask:
Is monitoring genuinely 24/7?
Are human analysts involved?
What security technologies are monitored?
Do you provide MDR?
Do you provide EDR?
Do you monitor Microsoft 365?
Do you monitor identity?
What happens when a critical threat is detected?
Can you isolate an endpoint?
How quickly will you notify us?
What are your response SLAs?
Is incident response included?
How long are security logs retained?
What reporting do we receive?
Can you work with our existing IT provider?
The Real Value of an MSSP
The value of an MSSP is not simply the software it deploys.
The real value comes from combining:
Technology
Security expertise
Continuous monitoring
Threat intelligence
Incident response
Processes
Reporting
Accountability
For businesses without a dedicated cybersecurity team, this can provide a practical way to improve security maturity without building a 24-hour security operation internally.
Cybersecurity is an ongoing process.
Threats evolve.
Employees change.
Applications change.
Cloud environments change.
New vulnerabilities appear.
Attack techniques change.
A business therefore needs more than a one-time security installation.
It needs continuous visibility and an established process for detecting and responding to threats.
A Managed Security Services Provider can provide that ongoing cybersecurity capability through services such as 24/7 security monitoring, MDR, EDR, SIEM, vulnerability management, incident response, identity security and cloud security.
The strongest MSSP relationships are built around clear responsibilities, measurable response procedures and a security strategy that is aligned with the organization’s actual risk.