Based on this note, your eligibility is conclusively passed. So no need to worry. Most likely your security should be in progress, or even passed. What is the date of the officer's note?
For most applicants security is done within 3-7 weeks. If your security is blank, on page 2 of your GCMS notes then it means that it is either in progress or passed. Security screening details are always redacted in the GCMS notes and you will see s15 on the top right of the page where the security is. To read on s15 see
https://bit.ly/3jvbiZO
To read on security screening and the security screening manual see
https://bit.ly/3ouIwfG
If your security has started, you will have 2-4 security activities in the GCMS notes. See my previous post on this to compare yours
#4,803