The SEC and FINRA say you need an IT Asset Checklist.
The SEC / FINRA and State Boards say you need to make an IT inventory list as part of your cybersecurity compliance protocols. You have a couple of options to do this.
1. Open Word Doc and Start Typing (Hard and Time Consuming)
2. Download FINRA Template and Start Typing (Easy and Time Consuming)
3. Use Zenmap to do it for you (Very Simple, Free, Comprehensive and takes Seconds)
#3 is as simple as Simon can make it.
Here is a video to show you how to do it.