Unlocking Unseen Threats in Your Network Without Replacing Existing Architecture

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A large financial institution, operating under both PCI DSS (Payment Card Industry Data Security Standard) and GDPR (General Data Protection Regulation), faces heightened scrutiny over data protection and security practices.

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On top of these regulations, new guidelines—such as M-21-31—emphasise the importance of storing DNS logs for extended periods, often a year or more, to assist in investigations and maintain a strong incident response posture.

industries

Public Sector & Regulated

Remote & Hybrid Workforces

EMPLOYEES

+2000

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Challanges

Regulatory Pressure

PCI DSS mandates secure handling and monitoring of payment-related data; DNS traffic can provide early indicators of compromise or unauthorised data transfers.

GDPR requires strict protection of personally identifiable information (PII). Any security breach can lead to severe penalties, especially if customer data is exposed.

M-21-31 & Extended Log Retention:

Recent guidance calls for retaining DNS logs for at least one year, introducing new storage and management demands.

Solution

DNSSight automatically ingests DNS logs and securely stores them, meeting year-long (or longer) retention requirements without manual overhead.
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A robust database structure supports quick lookups, allowing compliance teams to retrieve historical DNS records with minimal effort.
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DNS logs are enriched with IAM data in real time, pinpointing the exact user or device generating suspicious requests.
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By working at the network level, DNSSight monitors every DNS query—whether from on-site desktops, IoT systems, or remote employees.
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DNSSight’s on-premise deployment ensures sensitive data remains within controlled environments, preserving privacy and integrity.

Results

The bank demonstrates to auditors and regulators that DNS logs are retained safely for a year or more, satisfying PCI DSS, GDPR, and new M-21-31 guidelines.
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Customisable dashboards and automated reporting reduce the burden of compliance documentation.
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A single DNS query to a known malicious domain raises alerts, allowing security teams to isolate compromised systems before data loss occurs.
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Analysts can quickly trace DNS queries back to the originating endpoint, dramatically reducing time spent correlating logs across multiple systems.
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DNSSight leverages the institution’s existing DNS structure and SIEM investments, minimising capital expenses.

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Maximising DNS Security Insights :

Unlocking Unseen Threats in Your Network Without Replacing Existing Architecture

Maximising DNS Security Insights :

Unlocking Unseen Threats in Your Network Without Replacing Existing Architecture