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  1. Home>
  2. IT Topics>
  3. Security>
  4. File Integrity Monitoring
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File Integrity Monitoring with PRTG

Shield critical files in your IT environment and system data from bad actors

  • Monitor user permissions, configuration files, change events, and more
  • Easily verify updates to files and neutralize potential attack surfaces
  • Comply with industry regulations, including PCI DSS, GDPR, GLBA, and HIPAA
Free download
product overview

Our users give top ratings for monitoring with Paessler PRTG

Gartner peer insights
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Capterra

PRTG file integrity monitoring: What you will find on this page

Table of content
  • Smile, you’re on camera
  • 4 reasons why to choose PRTG as your file integrity monitoring tool
  • What file integrity monitoring looks like in PRTG
  • The only FIM solution you’ll ever need
  • Explore our preconfigured PRTG sensors for file integrity monitoring
  • File Integrity Monitoring: FAQ

PRTG makes file integrity monitoring as easy as it gets

Custom alerts and data visualization let you quickly identify and prevent unauthorized file changes, suspicious activity, and other potential security threats.

Free download
PRODUCT OVERVIEW

Smile, you’re on camera

Firewalls, VPNs, anti-malware, and other enterprise network security controls aren’t infallible.

That’s the bad news.

The good news is that, should bad actors manage to find their way around them and gain unauthorized access to your network, you can still stop them in their tracks.

Which is where PRTG’s file integrity monitoring solution comes in.

Like a powerful CCTV system, PRTG stays trained on your files, continuously monitoring who is accessing them, and ensuring no unexpected file modifications go undetected. And, the quicker you’re able to get in front of potential cyber threats, the easier it will be to neutralize them before they do lasting damage to your organization.

Table of content

4 reasons why to choose PRTG as your file integrity monitoring tool

icon file search

Comprehensive monitoring

Windows registry files. Active Directory files. Databases. Operating system files. Log files. Boot-up files. PRTG can monitor every single file on your network, whether it's stored locally, in the cloud, or in virtualized environments, so you always know who's accessing them and what changes they've made.

icon thief

Proactive protection

Bad actors might get around firewalls and other cybersecurity measures, but system files don't lie. PRTG alerts you about unauthorized access and unexpected file changes straight away. And, because it has a change intelligence framework built in, you won't get flooded with false positives.

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Complete control

Protect your files from tampering and improve your security posture without adding to your to-do list. Design a tailor-made policy for surgical file integrity monitoring across your entire network, and bring all your critical data in one place to simplify threat detection, remediation, and regulatory compliance.

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Proven compliance

Subject to GDPR, HIPAA, or other regulations, or need to follow standards like PCI DSS or CIS security benchmarks? With PRTG's file integrity monitoring software keeping an eye out for unauthorized changes, you can show regulators and industry bodies you're dead serious about following best practice.

What file integrity monitoring looks like in PRTG

Diagnose network issues by continuously tracking application files, configuration files, system files, event logs, user permissions, registry keys, and other critical system data. Show changes to files, their frequency, volume, and other key metrics in real time. Visualize monitoring data in clear graphs and dashboards to identify problems more easily. Gain the overview you need to detect and prevent unauthorized file changes, suspicious activity, and other potential security threats to your IT infrastructure.

PRTG Screenshot device tree view

Device tree view of the complete monitoring setup

PRTG screenshot map entire it infrastructure

Custom PRTG dashboard for keeping an eye on the entire IT infrastructure

PRTG screenshot graph live data traffic

Live traffic data graph in PRTG

Start monitoring file integrity with PRTG and see how it can make your network more reliable and your job easier.

Free download
PRODUCT OVERVIEW

IT experts agree: Paessler PRTG is a great solution for IT infrastructure monitoring

PCMag

“All-around winning
 network monitor”

IT Brief

“The real beauty of PRTG is the endless possibilities it offers”

ITPro

“PRTG Network Monitor 
is very hard to beat”

The only FIM solution you’ll ever need

PRTG safeguards the integrity of every mission-critical file on your network using sophisticated sensors:

  • The sensor Folder tracks the age and any changes to files in a given folder via SMB
  • The sensor File monitors file attributes such as availability, size, date last accessed, and date last modified of files on local servers, remote probes, or that are accessible via SMB
  • The sensor File Content checks log files and other text-based sensors for specific strings of words, such as "error" or "failed"

PRTG also comes with robust access management rights functionality built-in, giving you complete control over who can access and modify system files, as well as backup monitoring, so you can undo accidental or unauthorized file changes in a few clicks.

Explore our preconfigured PRTG sensors for file integrity monitoring

PRTG comes with more than 250 native sensor types for monitoring your entire on-premises, cloud, and hybrid cloud environment out of the box. Check out some examples below!

File

The File sensor monitors a file located on the local disk on the probe system, parent device, or a file that is accessible via Server Message Block (SMB). It can show the following:

  • File size
  • Time since the last modification of a file
File
File

Folder

The Folder sensor monitors a folder via Server Message Block (SMB). You can monitor file changes and file ages. It can show the following:

  • Execution time
  • Number of files in the folder
  • Folder size
  • Time since the newest modification of a file in the folder (newest file)
  • Time since the oldest modification of a file in the folder (oldest file)
Folder
Folder

File Content

The File Content sensor checks a text file (for example, a log file) for certain strings. It can show the following:

  • Number of matches
  • Line number of the last match
File Content
File Content

FTP Server File Count

The FTP Server File Count sensor logs in to a File Transfer Protocol (FTP) server and can monitor changes to files. It can show the following:

  • Execution time
  • Number of files that are available in the directory listing
FTP Server File Count
FTP Server File Count

See the PRTG Manual for a list of all available sensor types.

PRTG is compatible with all major vendors, products, and systems

compatible with all major vendors, products, and systems

PRTG makes file integrity monitoring as easy as it gets

Custom alerts and data visualization let you quickly identify and prevent unauthorized file changes, suspicious activity, and other potential security threats.

Free download
PRODUCT OVERVIEW

”PRTG helps us monitor critical security systems to give customers the peace of mind that their devices are operational and protecting their valuable assets.”

Rob Jackson, President
Integrated Precision Systems

“When it comes to security, we do of course use classic tools such as firewalls, virus scanners, and intrusion detection systems. However, these are no longer enough today. PRTG provides for additional security by detecting unusual behavior which may be a sign that a hacker has outsmarted our security systems.”

Damir Karacic, IT Administrator
Noris Inklusion

“Monitoring with PRTG is crucial for security. Today’s threats can move low and slow, so in addition to looking at the usual suspects, you also need to keep tabs on other indicators. For example, if a server is running a peak capacity for no apparent reason, you want to know so you can take a look and see what’s up – for example an open connection that is being used to extract data in a ransomware attack.”

Jon Larsen, CIO
Richweb

“The best thing about PRTG is that it provides for simple and effective monitoring, all the while respecting the security requirements of manufacturers. PRTG is so easy to use, that many of our monitoring tasks are now handled by our interns. We will definitely expand our use of the software in the future.”

Karsten Boettger, Head of IT
LAKUMED Clinics

Your file integrity monitor at a glance – even on the go

PRTG is set up in a matter of minutes and can be used on a wide variety of mobile devices.

device overview
Gartner peer insights

“Excellent tool for detailed monitoring. Alarms and notifications work greatly. Equipment addition is straight forward and server initial setup is very easy. ...feel safe to purchase it if you intend to monitor a large networking landscape.”

Read the complete review at Gartner Peer Insights

Create innovative solutions with Paessler’s IT partners

Partnering with innovative IT vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.

IP Fabric

IP Fabric

Combining PRTG’s broad monitoring feature set with IP Fabric’s automated network assurance creates a new level of network visibility and reliability.

Read more
Plixer

Plixer

Paessler and Plixer provide a complete solution adding flow and metadata analysis to a powerful network monitoring tool.

Read more
ScriptRunner

ScriptRunner

With ScriptRunner Paessler integrates a powerful event automation platform into PRTG Network Monitor.

Read more

Find the root cause of the problem with our PRTG file integrity monitoring solution

Real-time notifications mean faster troubleshooting so that you can act before more serious issues occur.

Free download
PRODUCT OVERVIEW
Paessler PRTG

Paessler PRTG

Network Monitoring Software – Version 25.2.106.1114 (May 05th, 2025)

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Hosting

Download for Windows and cloud-based version PRTG Hosted Monitor available

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Languages

English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese

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Monitor everything

Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more

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Choose the PRTG Network Monitor subscription that's best for you

Discover more monitoring insights and stories

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Solutions for all your monitoring needs

  • File monitoring
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  • The monitoring solution for all areas of IT!
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File Integrity Monitoring: FAQ

 

What is file integrity monitoring (FIM)?

File integrity monitoring (FIM) identifies anomalous changes in your file automatically. It informs you when there’s suspicious activity regarding the most critical files. You can take appropriate action as soon as you get the notification so that you stay compliant.

FIM software works as a supporting tool in an incident response and prevention infrastructure and can help safeguard your system from unwanted threats, breaches, and data modifications.

Numerous industry compliance standards also recognize how important FIM security is. Many compliance organizations require you to have a comprehensive mechanism in place to secure sensitive data and demonstrate how you can maintain a secure environment.

Why use a file integrity monitoring tool?

If your organization operates in a regulated industry like financial services or health care, or services individuals in the EU and, so, is subject to GDPR, a file integrity monitoring solution makes it easier to prove to regulators you're complying with the applicable rules, because it's tangible evidence that you're tracking system files and keeping a close eye on who can access them and any changes. With PRTG, you can also create custom reports (for both regulators and auditors) with a few clicks.

But it's worth using a file integrity monitoring tool even if you're none of the above. Bad actors are continuously adapting, using increasingly sophisticated techniques to gain access to organizations' networks and the sensitive data they hold.

A FIM tool like PRTG alerts you as soon as there's activity that seems like it could be a cyberattack. And, having access to robust threat intelligence means you’ll have a safer network and safer customer data (and a lower risk of PR disasters).

How does PRTG help with file integrity monitoring?

PRTG is a file integrity monitoring solution that tracks, evaluates, and reports every modification to the files stored on your system. Think of it as CCTV for the critical files that keep your network – and your organization – running smoothly. Available for Windows-based on-premises servers or as a cloud-hosted solution, it's capable of monitoring unlimited local, remote, and virtual devices round the clock, so you can identify unintended or suspicious changes, and pinpoint and neutralize potential data breaches and other cybersecurity threats such as malware more quickly.

How does file integrity monitoring work?

First, define a policy. Which files on your system do you want to monitor, and where are they stored?

Second, establish a baseline. That is, a definitive version of each file which the file integrity monitoring system will use to detect changes.

Third, monitor the files. With PRTG, this is as simple as assigning sensors to your endpoints and letting them do the work. You can either set it to calculate a checksum on files’ properties, or compare the live file to a backup. To minimize the risk of false positives, you can promote expected changes ahead of time. PRTG also sends you automatic in-app, text, or email notifications if there are any unauthorized or unexpected changes.

Need to prove you’re meeting the compliance requirements of PCI DSS, HIPAA, GDPR, or other industry regulations or standards? The final step is to generate reports of your monitoring activity.

My organization's network is hybrid or distributed. Can I still use PRTG's file integrity monitoring system?

Yes, you can. Set up remote probes close to the endpoints of the folders, databases, or other file systems you want to monitor. PRTG will gather the data and send it to your core server so you can see everything at a glance.

Can PRTG carry out file integrity monitoring on Linux and other Unix-based operating systems?

Yes. PRTG can keep an eye on hosts, bootloader, profiles, cron jobs, run comments, kernel parameters, and services and daemons in Linux and other Unix-based operating systems. You can do this either via SMB or SSH secure shell.

What is a sensor in PRTG?

In PRTG, “sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, for example the traffic of a switch port, the CPU load of a server, or the free space on a disk drive. On average, you need about 5-10 sensors per device or one sensor per switch port.

We asked: would you recommend PRTG? Over 95% of our customers say yes!

Paessler conducted trials in over 600 IT departments worldwide to tune its network monitoring software closer to the needs of sysadmins. The result of the survey: over 95% of the participants would recommend PRTG – or already have.

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Still not convinced?

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More than 500,000 sysadmins love PRTG

Paessler PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.

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Monitor your entire IT infrastructure

Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.

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Try Paessler PRTG for free

Everyone has different monitoring needs. That’s why we let you try PRTG for free.

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Start monitoring file integrity with PRTG and see how it can make your network more reliable and your job easier.

Free download
PRODUCT OVERVIEW

Products

  • Paessler PRTG
    Paessler PRTGMonitor your whole IT infrastructure
    • PRTG Network Monitor
    • PRTG Enterprise Monitor
    • PRTG Hosted Monitor
    • PRTG extensions
      Extensions for Paessler PRTGExtend your monitoring to a new level
  • Icon Features
    FeaturesExplore all monitoring features

Monitoring with PRTG

  • Network monitoring
  • Bandwidth monitoring
  • SNMP monitoring
  • Network mapping
  • Wi-Fi monitoring
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  • Network traffic analyzer
  • NetFlow monitoring
  • Syslog server

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