Access audit trailsSecurity visibility

Show Auditors Who Accessed What, When, and From Which Device

Customer problem

Access Evidence Is Hard to Produce

Auditors and incident responders ask the same questions: who connected, from which device, was it healthy, and was access allowed or denied?

Remote-access logs show an IP address, not a device. Firewall logs show addresses and ports, not users. Endpoint tools miss which application was reached. Each tool has its own format and console.

Pulling these together can take days.

  • Network logs that record IPs, not people
  • Shared addresses that belong to different devices over a day
  • Device health not recorded at connection
  • Allowed connections with no policy reason
  • Separate formats and consoles to correlate by hand
  • Gaps between layers that nobody checked

THE COSGRID SOLUTION

Identity-Based Evidence at Each Layer

COSGrid does not claim to be a single audit system. Each product makes access decisions against verified identity and records them for its own layer. Where a product supports export, that evidence can be sent to your SIEM, where your team correlates it.

With COSGrid, organisations can

  1. Attribute application access to a named user and device
  2. Record device admission, denial and quarantine on the LAN
  3. Log traffic allowed and blocked between network zones
  4. Export evidence to their SIEM where each product supports it
  5. Use shared policy objects across products through Guider

How It Works

  1. Establish Identity

    Users authenticate through your identity provider. Devices running the COSGrid agent carry a certificate identity.

  2. Check Posture and Decide

    Where posture checks are in use, device health is evaluated first. Each product then allows or denies the request against policy.

  3. Record and Export

    Each product records its own access, admission or enforcement decisions, and exports them to your SIEM where supported.

  4. Correlate and Report

    Investigators and auditors query the records in your SIEM, using the retention and reporting you already run.

Key Benefits

Named Users and Devices

Access decisions name the user and the device, not just an IP address.

Per-Application Records

Deny-by-default, per-application access means records show exactly which application was reached.

Device Admission Records

ZT-NAC records which devices joined, were denied or were quarantined on the office LAN.

Network Enforcement Logs

NexusShield records allowed and blocked traffic, covering devices that cannot run an agent.

Network Context

NetShield NDR is designed to show what traffic crossed the network after an access event.

Evidence in Your SIEM

Records export to your SIEM where each product supports it.

Fragmented Access Logs vs Identity-Based Evidence

Fragmented Access Logs

  • IP addresses in network logs
  • Anonymous devices behind shared pools
  • Device health not recorded
  • Allowed connections with no stated reason
  • Separate formats for each tool
  • Manual correlation across consoles

Identity-Based Evidence

  • Named user and device in access decisions
  • Certificate identity per agent-running device
  • Posture checked before access
  • Allow or deny decided against policy
  • Shared policy objects across products (Guider)
  • Records exported to your SIEM where supported

Use cases

Built for every audit scenario

Show who accessed a sensitive application

Show who accessed a sensitive application

An auditor asks who accessed the finance application last quarter. MicroZAccess records show the users and devices granted access.

Trace an unusual login to a device

Trace an unusual login to a device

A user's account is used at an unusual time. The team checks which device connected, whether it was the user's enrolled device, and what it reached.

Evidence that unknown devices are kept off

Evidence that unknown devices are kept off

An auditor asks how unknown devices are kept off the office network. ZT-NAC admission, denial and quarantine records show the control operating.

Separate records for contractor access

Separate records for contractor access

Records show which applications a contractor reached and when, separate from employee access.

Who Is This For

Want the access model behind these records? See "Give employees access to applications, not the whole network"

  • Compliance & Internal Audit Teams
  • CISOs
  • SOC Teams
  • IT & Security Architects
  • Regulated Sectors

FAQs

Have a question about access audit trails and security visibility?

questionWhat is an access audit trail?
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It is a record of who accessed which resource, when, from which device, and whether access was allowed or denied. It supports audits and incident investigations.
questionDoes COSGrid store all logs in one place?
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No. Each COSGrid product records evidence for its own layer. Where a product supports export, its records can be sent to your SIEM, which is where they are combined.
questionWhich SIEM tools are supported?
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It depends on the product. SecureWebAccess exports to Splunk, Elasticsearch and CEF. SwiftZAccess streams decisions to the customer SIEM.