Cloud Security Monitoring
Cloud security monitoring is the continuous analysis of activity across cloud environments (AWS, Azure, GCP) to detect misconfigurations, IAM abuse, data exfiltration, and account compromise. It combines Cloud Security Posture Management (CSPM), which scans for configuration risks, with behavioural monitoring of cloud API activity to detect active threats. Precursor Security delivers cloud security monitoring as a managed service from a UK CREST-accredited SOC, from £900/month.
Your cloud environment is generating events around the clock. CloudTrail logs, Defender alerts, GuardDuty findings. Without a team monitoring them, they accumulate and so does your exposure. Precursor's UK SOC watches your AWS, Azure, and GCP environments 24/7, with CSPM misconfiguration scanning, IAM threat detection, and incident response. CREST-accredited. From £900/month.
GuardDuty Generates Alerts.
Who Investigates Them at 3am?
Cloud-native security tools (GuardDuty, Defender for Cloud, Security Command Center) generate hundreds of alerts per week. They do not investigate them, correlate them across clouds, or respond to confirmed threats.
Your cloud-native tools provide the telemetry. Without a team monitoring and responding to that telemetry around the clock, your CISO cannot truthfully answer “yes” to “Do you have 24/7 cloud security monitoring?”
Book a Scoping CallCloud Monitoring
Methodology
Comprehensive cloud threat detection combining misconfiguration scanning with behavioural analysis of cloud API activity. Backed by a CREST-accredited UK SOC with 24/7 coverage. Cloud telemetry is correlated within Precursor's MDR service, alongside endpoint, identity, and network signals across your estate.
Multi-Cloud Visibility (AWS, Azure, GCP)
Unified monitoring across Amazon Web Services, Microsoft Azure, and Google Cloud Platform. We ingest CloudTrail, Azure Activity Logs, and GCP Audit Logs to provide comprehensive visibility into all cloud activity across every account and subscription.
Misconfiguration Detection (CSPM)
Cloud Security Posture Management continuously scans for misconfigurations: public S3 buckets, overly permissive security groups, unencrypted databases, and IAM policies granting excessive privileges. Benchmarked against industry standard benchmarks for AWS, Azure, and GCP.
IAM & Identity Threat Detection
35% of cloud intrusions in 2025 used valid accounts as initial access (CrowdStrike 2026 Global Threat Report). We monitor for IAM abuse: privilege escalation, unusual API calls from service accounts, creation of backdoor access keys, and access from suspicious IP addresses or geographic locations.
Data Exfiltration & Storage Abuse
Detecting unauthorised access to cloud storage (S3, Azure Blob, GCS), mass downloads of sensitive data, public sharing of private buckets, and snapshot exports to attacker-controlled accounts.
Cryptomining & Resource Abuse
Identifying unauthorised compute resource usage: EC2/VM instances launched for cryptomining, abnormal CPU spikes, Lambda/Functions invoked excessively, and cost anomalies indicating compromised credentials.
Managed Cloud Security vs.
Building In-House
The instinct to build cloud security capability in-house is reasonable. It looks cheaper on a spreadsheet. In practice, the numbers tell a different story.
| Capability | Hiring In-House | Precursor Managed |
|---|---|---|
| Time to operational | 3-6 months | 5-7 business days |
| Annual cost | £75K-£95K+ (one engineer) | From £10,800/year |
| Coverage hours | Business hours only | 24/7/365 |
| Multi-cloud expertise | Limited to one person | CREST-accredited team across AWS, Azure, GCP |
| Scales with cloud growth | Requires rehiring | Included in service tier |
| CSPM remediation tracking | Manual | Managed, with audit evidence |
| Threat hunting | Depends on individual | Monthly proactive hunts |
| Holiday and sick cover | Coverage gaps | Continuous, no gaps |
For organisations that need cloud security to be operational this quarter rather than this year, a managed service is not the compromise option. It is the faster, more cost-effective path to genuine coverage.
Get a quoteCloud Security Posture
Management (CSPM)
The most common cloud breaches do not involve sophisticated zero-day exploits. They involve a public S3 bucket, an IAM role with excessive permissions, an unencrypted database exposed to the internet, or a storage account with logging disabled.
CSPM tools like Wiz, Prisma Cloud, and Microsoft Defender for Cloud are effective at identifying misconfigurations. The problem is that identification is not remediation.
Precursor delivers CSPM as a managed service. We do not just surface findings: we triage them by severity and exploitability, track remediation status, and alert your team when critical misconfigurations require immediate action. Our scanning is benchmarked against industry standard benchmarks for AWS, Azure, and GCP, and mapped to the compliance requirements your auditors reference.
If your CSPM tool has more findings than your team can manage, the answer is not a different tool. It is an operational team that works the queue every day. That is what Precursor provides.
How Cloud Security Monitoring Works
From cloud integration to 24/7 threat protection. Typically operational within 5-7 business days.
Cloud Account Integration
Read-only API connection to your AWS, Azure, and GCP environments using service principals or IAM roles. No agents required. Logs ingested via native APIs (CloudTrail, Activity Logs, Audit Logs). Typically operational within 5-7 business days.
Baseline and Policy Configuration
Establishing normal cloud usage patterns and configuring detection policies based on industry standard security benchmarks, NIST CSF, and your specific compliance requirements (PCI DSS, ISO 27001, GDPR). Detection rules tuned to your environment before go-live.
24/7 Threat Monitoring
Continuous monitoring for cloud-specific threats: IAM privilege abuse, security group changes, public exposure of storage buckets, unusual API activity, and signs of account compromise including impossible travel for service accounts.
Incident Response and Remediation
When a threat is confirmed, we assist with containment: revoking compromised credentials, quarantining affected resources, blocking malicious IP addresses, and providing forensic analysis of cloud audit logs.
Procurement Requirements
Fixed monthly pricing with no per-incident fees. Read-only API integration requires no changes to your cloud infrastructure. All monitoring, triage, and incident response is performed by CREST-accredited, UK-based analysts in our Newcastle SOC.
Log Sources We Ingest
Native API integration with all three major cloud platforms. No agents, no performance impact, no infrastructure changes required.
| Platform | Log Sources Ingested |
|---|---|
| AWS | CloudTrail, GuardDuty findings, VPC Flow Logs, S3 access logs, Config |
| Azure | Activity Logs, Entra ID sign-in logs, NSG Flow Logs, Defender for Cloud alerts |
| GCP | Cloud Audit Logs (Admin Activity + Data Access), Security Command Center findings |
| All Platforms | Container and Kubernetes control plane logs (EKS, AKS, GKE) |
No hidden costs. No per-incident fees. Pricing based on cloud footprint.
Cloud Is One Layer.
Build the Full Programme.
Cloud monitoring works best when paired with endpoint detection, identity monitoring, and offensive security validation. Our penetration testers use SOC threat intelligence to test your cloud controls against live attack patterns your monitoring should detect.
Explore Full MDR PlatformCloud Penetration Testing
Validate your cloud configurations against real attack techniques.
Endpoint Protection (EDR)
Managed endpoint detection and response for all devices.
Identity Threat Detection
Monitor Azure AD, Entra ID, and Active Directory for compromise.
Incident Response
Pre-agreed access to CREST-accredited IR team.
Adjacent decisions UK buyers weigh alongside cloud security monitoring.
Managed Detection & Response (MDR)
Cloud monitoring is one layer. Full MDR adds endpoint, network, identity, and M365 coverage under a 24/7 UK SOC.
Explore MDRSecurity Operations Centre
The SOC layer correlates cloud alerts with SIEM, identity, and endpoint telemetry to detect multi-stage attacks.
See the SOC serviceCyber Incident Response UK
When cloud misconfiguration or IAM abuse leads to a breach, our DFIR team contains and recovers.
Explore IR servicesMDR vs SOC vs SIEM vs EDR vs XDR
Cloud security monitoring sits inside a wider stack of acronyms. This guide sets out what each term actually covers and where cloud fits.
See the comparisonFull Services Catalogue
Comprehensive penetration testing services tailored to your environment.
Internal Testing
Post-perimeter assessments targeting Active Directory, lateral movement, privilege escalation, and segmentation validation from inside your network.
Ready to stop monitoring
cloud alerts in a spreadsheet?
Book a free scoping call. We review your cloud architecture, confirm platform compatibility, and provide a fixed monthly quote within 48 hours. No obligation. No sales pressure.
Cloud Security Monitoring: Common Questions
Pricing, platforms, onboarding, and how managed cloud security compares to cloud-native tools.
Cloud security monitoring starts from £900/month. Pricing depends on cloud environment size, number of accounts, resource count, and log volume. We provide fixed monthly quotes after reviewing your cloud architecture.
CSPM, or Cloud Security Posture Management, is the continuous monitoring and remediation of cloud configuration risks across AWS, Azure, and GCP environments. A CSPM system scans your cloud accounts against industry standard security benchmarks and NCSC Cloud Security Principles, identifying misconfigurations: public storage buckets, overly permissive IAM policies, unencrypted databases, disabled logging, and open security groups that create exploitable attack surface. CSPM tools like Wiz, Orca Security, Prisma Cloud, and Microsoft Defender for Cloud are effective at identifying misconfigurations. The operational challenge is that they surface findings faster than most security teams can act on them. Precursor delivers CSPM as a managed service: we operate the tooling, triage findings by severity and exploitability, track remediation progress, and provide the audit evidence your compliance programme requires.
CSPM (Cloud Security Posture Management) and CWPP (Cloud Workload Protection Platform) address different layers of cloud security risk. CSPM focuses on configuration: it scans your cloud accounts for misconfigured services, excessive permissions, exposed storage, and disabled security controls. It is concerned with the environment: are your settings correct? CWPP focuses on workloads: it protects the compute resources running in your cloud (virtual machines, containers, serverless functions) from runtime threats. It detects malware, suspicious process execution, container escapes, and lateral movement within running workloads. Most organisations need both. CSPM tells you your environment is configured correctly. CWPP tells you your workloads are not being actively attacked. Precursor's cloud security monitoring service combines CSPM misconfiguration scanning with behavioural monitoring of cloud API activity, and can extend to workload-level coverage for Kubernetes environments (EKS, AKS, GKE).
Cloud security monitoring is the continuous analysis of activity across cloud environments (AWS, Azure, GCP) to detect misconfigurations, IAM abuse, data exfiltration, and account compromise. It combines Cloud Security Posture Management (CSPM), which scans for configuration risks, with behavioural monitoring of cloud API activity to detect active threats. Unlike cloud-native alerting tools, managed cloud security monitoring provides 24/7 human investigation and response from a dedicated SOC team.
Cloud-native tools provide valuable telemetry but have significant limitations: (1) GuardDuty, Defender for Cloud, and Security Command Center generate alerts but do not investigate them. You still need analysts to triage, investigate, and respond. (2) Native tools are single-cloud. They do not correlate threats across multi-cloud or hybrid environments. (3) Alert fatigue is real. Organisations receive hundreds of daily alerts and lack capacity to review them all. (4) Native tools do not perform threat hunting. They are reactive, not proactive. (5) 24/7 monitoring requires dedicated security staff that most cloud teams do not have. Most organisations use native tools as telemetry sources while outsourcing monitoring and response to specialist SOC providers.
We monitor Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). We can also monitor hybrid and multi-cloud environments, correlating on-premise activity with cloud-based threats for unified visibility. For AWS we ingest CloudTrail, GuardDuty findings, VPC Flow Logs, S3 access logs, and Config. For Azure we ingest Activity Logs, Entra ID sign-in logs, NSG Flow Logs, and Defender for Cloud alerts. For GCP we ingest Cloud Audit Logs (Admin Activity and Data Access) and Security Command Center findings. All platforms: container and Kubernetes control plane logs (EKS, AKS, GKE).
The core best practices for cloud security monitoring are: (1) Enable logging on every service, in every account. CloudTrail in all AWS regions, Azure Activity Logs across all subscriptions, GCP Admin Activity logs for all projects. Logs you do not collect are threats you cannot detect. (2) Monitor IAM activity as a first priority. Identity-based attacks are the most common initial access vector in cloud environments. (3) Scan for misconfigurations continuously, not periodically. Cloud infrastructure changes daily. A point-in-time audit is stale within days. Continuous CSPM scanning against industry standard security benchmarks catches drift before it becomes a breach. (4) Establish baselines before alerting. Alerting on raw API call volume without a baseline generates noise. (5) Have a response plan before you need it. Detecting a compromised access key is only useful if your team knows how to revoke it, contain the damage, and assess what was accessed. (6) Ensure 24/7 coverage. Cloud attackers do not respect business hours. The mean time between initial access and significant damage in cloud breaches is measured in hours, not days.
Yes, but only read-only access. We use IAM roles (AWS), service principals (Azure), or service accounts (GCP) with minimal permissions scoped exclusively to security monitoring, typically SecurityAudit or similar read-only policies. We never require write access for monitoring.
Yes. We monitor for signs of compromised credentials: API calls from unusual IP addresses or geographic locations, creation of backdoor access keys, privilege escalation attempts, and API activity inconsistent with normal behaviour. When GuardDuty fires an UnauthorizedAccess:IAMUser/InstanceCredentialExfiltration finding, our SOC checks CloudTrail for subsequent API calls, assesses whether IMDS v2 was enforced, and advises on credential revocation within minutes.
Yes. We monitor containerised workloads (EKS, AKS, GKE) and Kubernetes control plane activity. This includes detecting privileged container escapes, malicious image deployments, and abuse of service account tokens.