Security monitoring is the collection of data from a range of security systems and the correlation and analysis of this information with threat intelligence to identify signs of compromise.
Security monitoring is a crucial part of cyber risk management, enabling organisations to detect cyber-attacks in their infancy, and rapidly escalate threats for remediation before they cause damage and disruption.
Baselining – the process of establishing an agreed level of typical network performance – plays an important role in cyber security monitoring. Any network behaviour that falls outside what is considered regular behaviour should be analysed to identify whether or not it could be malicious.
How does cyber security monitoring work?
Cyber security analysts utilise a range of technologies to achieve visibility of threats at network and endpoint levels.
Network security monitoring
Network security monitoring tools include Security Information and Event Management (SIEM) and Intrusion Detection Systems (IDS).
SIEM systems collect, manage and correlate log information from a range of sources to provide an holistic view of security posture, and generate alerts for investigation by cyber security analysts. IDS combines network (NIDS) and host (HIDS) based methods to analyse network traffic and identify anomalous behaviour.
Endpoint detection technologies provide visibility of activity such as file executions and registry changes across desktops, laptops, and servers. This empowers cyber security analysts to inspect deeper into IT infrastructure to hunt for, detect and terminate threats.
Security monitoring tools generate a large volume of alerts. Sifting through these to identify genuine threats from false positives is highly resource intensive and this can lead to important alerts being ignored.
Setting up a Cyber Security Operations Centre (CSOC) to undertake 24/7 security monitoring is often cost prohibitive. Rather than recruiting and training dedicated in-house experts and arming them with the latest technologies and intelligence, many organisations are instead opting for a specialist managed service.
As the modern workplace becomes increasingly digitised, with BYOD and remote working on the rise, the traditional security perimeter is becoming blurred. Cyber threats are evolving to take advantage of new vulnerabilities that emerge daily.
With breaches now an operational reality, proactive detection is essential. While technology alone can block many common signature-based threats, a deeper level of cyber security monitoring is required to identify the latest sophisticated threats, including the latest types of ransomware and memory-resident malware.
Continuous network and endpoint security monitoring helps organisations to:
Improve threat visibility
Detect a broader range of threats
Reduce incident response times from months to minutes
Evaluate the performance of existing security controls
Comply with industry and regulatory requirements
Why choose ThreatDetect for cyber security monitoring?
Redscan is an award-winning provider of managed security services. ThreatDetect™, our flagship managed detection and response service, combines world-class CSOC expertise, cutting-edge network and endpoint technologies and up-to-the-minute threat intelligence to detect threats early and provide the clear remediation guidance needed to address them.