Personal Software Inspector (PSI)
Personal Software Inspector for Android
Compare Consumer Products
How It Works
System Requirements

Free computer security

Stay secure by updating insecure programs on
your computer with the Secunia PSI


The Secunia PSI explained

The Secunia Personal Software Inspector (PSI) is a free computer security solution that identifies vulnerabilities in non-Microsoft (third-party) programs which can leave your PC open to attacks.

Simply put, it scans software on your system and identifies programs in need of security updates to safeguard your PC against cybercriminals. It then supplies your computer with the necessary software security updates to keep it safe. The Secunia PSI even automates the updates for your insecure programs, making it a lot easier for you to maintain a secure PC.

Using a scanner like Secunia PSI 3.0 is complementary to antivirus software, and as a free computer security program, is essential for every home computer.


Learn more about PSI in these short videos

PSI 3.0 Walkthrough
So simple that anyone can be secure! watch this quick demonstration on how to use the PSI 3.0
Watch now (YouTube)

Tim and Dave
Short animated story about security and why Tim is happier than Dave.

Watch now (YouTube)

Technical Product Sheet
Here is the full rundown of technical specifications for PSI 3.0

Download now (PDF)

Product Sheet
Get the overview without the technical jargon - listing features in the PSI 3.0 and explaining why you need it.
Download now (PDF)



Secunia PSI named as Security app of the week by Softpedia.
“At the moment, Secunia PSI can deliver security updates for more than 3,000 software pieces, which places it at the top of the list of security scanners.”.
Click here to read the five star review.


PCMag has reviewed the Secunia PSI 3.0.
Click here to read the full review.

Bill Mullins' Weblog
- Tech Thoughts

“A must have security application - Secunia PSI 3.0 final version”.
Click here to read the full review.

PC World reviews PSI, compliance audit, internet security, network security,  windows patching, patch management tools, automated patch management, free patch management software

“Secunia PSI won't do away with the need to run a good antivirus program and firewall on your PC. But it provides a solid layer of free protection that no PC should do without”.
Secunia PSI is one of 6 Super Security Freebies. Click here to read more.

ZDNet recommends PSI, compliance audit, vulnerability assessment, patch management   software, patch management policy, intrusion prevention, free patch management software

“Number one is the Secunia Personal Software Inspector, quite possibly the most useful and important free application you can have running on your Windows machine”.



The following screenshots of the Secunia PSI version 3.0 give you a glimpse at some of its functionality. We hope you like what you see and wish to secure your computer using the free Secunia PSI.

Scanning your PC

Unpatched Programs


All ok!

Share it with your friends

The PSI is now available in the 8 following languages:



Join millions of home users around the world – boost your internet security and download the Secunia PSI for FREE!

Secunia PSI awarded 5 stars editor's pick from Software.Informer

Join us to protect all PCs worldwide. Download the new Secunia PSI

The Board of Editors at Download Central.no has awarded Secunia Personal Software Inspector with the 5 out of 5 star award.
We’re very proud of that, as less than 1 % of the software listed at Download Central receive this award.

Secunia PSI has achieved ”editorial pick“ on freeware.de

Secunia PSI awarded Best Web Tool by webhostingsearch.com Secunia PSI is awarded Best Web Tool by webhosting-search.com

 Products Solutions Customers Partner Resources Company
Vulnerability Intelligence Manager (VIM)
Corporate Software Inspector (CSI)
Personal Software Inspector (PSI)
Online Software Inspector (OSI)
Technology Partners
 About us

© 2002-2014 Secunia ApS - Rued Langgaards Vej 8, 4th floor, DK-2300 Copenhagen, Denmark - +45 7020 5144
Terms & Conditions and Copyright - Privacy - Report Vulnerability