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* Across the Logs and Into ...

# Across the Logs and Into Cortex XSIAM

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By [Brendan Powers](https://www.paloaltonetworks.com/blog/author/brendan-powers/?ts=markdown "Posts by Brendan Powers")  
May 22, 2025  
5 minutes  
[AI Security](https://www.paloaltonetworks.com/blog/category/ai-security/?ts=markdown)  
[Must-Read Articles](https://www.paloaltonetworks.com/blog/security-operations/category/must-read-articles/?ts=markdown)  
[Product Features](https://www.paloaltonetworks.com/blog/security-operations/category/product-features/?ts=markdown)  
[Cortex XSIAM](https://www.paloaltonetworks.com/blog/tag/cortex-xsiam/?ts=markdown)  
[MITRE](https://www.paloaltonetworks.com/blog/tag/mitre/?ts=markdown)  
[soc transformation](https://www.paloaltonetworks.com/blog/tag/soc-transformation/?ts=markdown)  
[XSIAM](https://www.paloaltonetworks.com/blog/tag/xsiam/?ts=markdown)

### *A Proven Three-Step Path to Lower Cost, Faster MTTR, and MITRE-Validated 100 % AI-Powered Detection*

### **Introduction**

Implementing a new[SIEM](https://www.paloaltonetworks.com/cortex/modernize-siem) solution has historically been stressful and complex. Teams often compare the effort to rewiring an entire house---time-consuming, disruptive, and leaving them vulnerable to threats throughout the process. Traditional [SIEM](https://www.paloaltonetworks.com/cyberpedia/what-is-siem) deployments routinely struggle with data onboarding, data quality, complex detection rules, and limited automation.

Cortex XSIAM resolves these challenges through simplified onboarding, built-in AI analytics, and native automation---then extends value further with a unified platform that adds [SOAR](https://www.paloaltonetworks.com/cyberpedia/what-is-soar), [ASM](https://www.paloaltonetworks.com/cyberpedia/what-is-attack-surface-management), and other advanced capabilities as your needs grow.

*This blog summarizes key insights from a [breakout session featuring Kevin Kin, worldwide VP of go-to-market SOC transformation, and Greg Smith, senior product marketing manager,](https://tv.paloaltonetworks.com/video/6368025492112/symphony-25-upgrading-from-traditional-siem-to-xsiam) highlighting how Cortex XSIAM simplifies migrating from legacy SIEMs and transforms security operations.*

### **Why the Upgrade Is Easy**

**Why migration isn't a forklift project:**

* **Step 1: Connect** --- Use XSIAM's Migration Wizard and 1,000+ one-click connectors to ingest existing log sources. Auto-parsing handles 80% of common formats up front.
* **Step 2: Map** --- Built-in health monitoring validates data flow; correlation-rule mapping tool shows you which of your legacy rules are already covered by XSIAM analytics (typically **75%--80%**).
* **Step 3: Cut Over** --- Elastic cloud back-end ingests up to **11+ petabytes per day** with zero on-prem hardware. Most customers move initial use-cases live in **4--8 weeks**, with outside-consulting costs a fraction of legacy SIEM upgrades.

**Result:** Faster time-to-value, lower project risk, and immediate operational savings.
![Fig. 1: Cortex XSIAM’s Command Center’s Data Inventory Dashboard](https://www.paloaltonetworks.com/blog/wp-content/uploads/2025/05/word-image-339803-1.png)
Fig. 1: Cortex XSIAM's Command Center's Data Inventory Dashboard

### **Streamlined Data Onboarding**

Traditional SIEM onboarding is slow and costly---every new log source requires custom parsers, manual health checks, and hardware tuning. **Cortex XSIAM removes that friction:**

* **1,000+ one-click connectors** ingest network, endpoint, cloud, identity, and third-party data---no custom parsing for common formats.
* **Continuous ingestion-health monitoring** baselines each source, detects schema or volume drift within minutes, and alerts analysts before data gaps appear.
* **Elastic cloud engine proven at 11 PB/day** scales automatically, eliminating index management and infrastructure sizing.

**Net result:** Hours, not days, to onboard new data and keep pipelines healthy.

### **Enhanced Detection through Advanced Analytics**

Traditional SIEMs rely on manually crafted correlation rules --- a retroactive method that spots only threats you already know, leaving blind spots and operational risk. Cortex XSIAM replaces that model with AI and ML that detect both known and never-seen-before attacks:

* **10,000+ out-of-the-box detectors and 2,400 ML models** refreshed daily with Unit 42 threat research.
* **Behavior-driven BIOCs** that automatically profile users, endpoints, and networks, surfacing anomalies such as multiple failed logins or impossible-travel access.
* **Bring Your Own ML (BYOML)** --- import or build custom Jupyter-Notebook models directly inside XSIAM to address niche or industry-specific threats.
* **Optional custom correlation rules** that teams can import, clone, and manage with minimal overhead.

Together, these capabilities slash dependence on manual rules, free analysts for higher-value work, and---validated by Cortex's 100% detection and industry-low false positives in [MITRE ATT\&CK Round 6](https://start.paloaltonetworks.com/mitre-round-6-the-essential-guide)---deliver dramatically higher accuracy.
![Fig. 2: Cortex XSIAM’s Command Center’s Incident Overview Dashboard](https://www.paloaltonetworks.com/blog/wp-content/uploads/2025/05/word-image-339803-2.png)
Fig. 2: Cortex XSIAM's Command Center's Incident Overview Dashboard

### **Automating Security Responses at Scale**

Migration often reveals the limitations of existing automation strategies. Differences in scripting, integrations, and workflows between systems typically demand extensive rework and testing---plus significant human time and specialist skills. Cortex XSIAM addresses automation complexity directly:

* Native SOAR functionality and intuitive playbook management require minimal coding or scripting expertise.
* 1,000+ out-of-the-box automation playbooks streamline remediation tasks and can be easily customized.
* Automated playbooks, such as those for cloud misconfigurations, run autonomously with analyst approvals strategically incorporated for critical decisions.

XSIAM's approach lets teams offload repetitive tasks, automatically group related alerts into single incidents---cutting total alert volume by **75%** ---and improve mean-time-to-response by **up to 98%**.

### **Streamlined Compliance Reporting**

Compliance is often a major challenge when migrating SIEMs, especially regarding data formats, report generation, and retention standards. XSIAM simplifies compliance processes with:

* Built-in templates supporting frameworks like [PCI](https://www.paloaltonetworks.com/cyberpedia/pci-dss), [HIPAA](https://www.paloaltonetworks.com/cyberpedia/what-is-hipaa), [GDPR](https://www.paloaltonetworks.com/cyberpedia/gdpr-compliance), and CIS benchmarks.
* Real-time compliance monitoring with automatic alerts on detected violations.
* Interactive dashboards and customizable reporting features that simplify communication with governance and compliance teams.

These features minimize manual compliance work and keep teams continuously audit-ready.
![Fig. 3: Cortex XSIAM’s HIPAA Compliance Dashboard](https://www.paloaltonetworks.com/blog/wp-content/uploads/2025/05/word-image-339803-3.png)
Fig. 3: Cortex XSIAM's HIPAA Compliance Dashboard

### **Phased Migration: Real-World Customer Insights**

Migration does not have to be a disruptive, "all-or-nothing" endeavor. Real-world deployments of XSIAM illustrate this clearly:

* **Immediate Plug-and-Detect** -- Core log sources connect in a few clicks, and XSIAM's 10,000+ built-in detectors automatically cover the vast majority of common correlation use-cases, leaving only niche rules to import or rebuild
* **Seamless Expansion \& Streamlining** -- Additional data sources are added at your pace while continuous ingestion-health monitoring baselines every feed and flags gaps automatically---no manual parsers or health checks.
* **Automated SOC at Scale** -- Cloud-native elasticity and 1,000+ pre-built playbooks converge analytics, SOAR, and dashboards into a single UI, collapsing tool sprawl and accelerating response times.

\*\*[Customer proof:](https://www.paloaltonetworks.com/customers/boyne-resorts-achieves-game-changing-soc-improvements-with-cortex-xsiam-and-unit-42-mdr)\*\*One retailer completed migration in under three months, while a global IT services provider consolidated eight separate security tools into XSIAM and dramatically cut MTTR. These experiences show how XSIAM modernizes security operations smoothly and efficiently, reducing complexity and risk at every step.

### **Conclusion: Modernize, Unify, and Accelerate**

Migrating from a legacy SIEM solution doesn't have to be overwhelming. Cortex XSIAM simplifies migration with robust data onboarding, powerful built-in analytics, comprehensive automation capabilities, and simplified compliance management. Real-world [customer success stories](https://www.paloaltonetworks.com/cortex/customer-stories) confirm the ease and effectiveness of adopting XSIAM.

#### **Curious to learn more? [Start with our on-demand deep-dive on upgrading from legacy SIEM to XSIAM](https://tv.paloaltonetworks.com/video/6368025492112/symphony-25-upgrading-from-traditional-siem-to-xsiam), then follow up with a [self-guided tour](https://www.paloaltonetworks.com/resources/infographics/xsiam-product-tour) or a [personalized demo](https://www.paloaltonetworks.com/cortex/request-demo) from our SOC-transformation experts.**

*** ** * ** ***

## Related Blogs

### [Must-Read Articles](https://www.paloaltonetworks.com/blog/security-operations/category/must-read-articles/?ts=markdown), [Product Features](https://www.paloaltonetworks.com/blog/security-operations/category/product-features/?ts=markdown)

[#### Transform Your SOC with Cortex XSIAM: Lessons From a Zombie Infestation](https://origin-researchcenter.paloaltonetworks.com/blog/security-operations/transform-your-soc-with-cortex-xsiam-lessons-from-a-zombie-infestation/)

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[#### From ILOVEYOU to AI Defenders -- 25 Years of Email Evolution](https://origin-researchcenter.paloaltonetworks.com/blog/security-operations/from-iloveyou-to-ai-defenders-25-years-of-email-evolution/)

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[#### Cortex ITDR: Cyber Threats in Microsoft Teams and Their Detection](https://origin-researchcenter.paloaltonetworks.com/blog/security-operations/cortex-itdr-cyber-threats-in-microsoft-teams-and-their-detection/)

### [Must-Read Articles](https://www.paloaltonetworks.com/blog/security-operations/category/must-read-articles/?ts=markdown), [Product Features](https://www.paloaltonetworks.com/blog/security-operations/category/product-features/?ts=markdown)

[#### What's New in Cortex](https://origin-researchcenter.paloaltonetworks.com/blog/security-operations/whats-new-in-cortex/)

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