diff --git a/README.md b/README.md
index 1f303de..30f2bfd 100644
--- a/README.md
+++ b/README.md
@@ -127,9 +127,9 @@ This course will introduce you to the world of computer science and programming.
 `basic data structures and algorithms`
 `and more`
 
-Courses | Duration | Effort | Prerequisites | Discussion
-:-- | :--: | :--: | :--: | :--:
-[Introduction to Computer Science and Programming using Python](coursepages/intro-cs/README.md) | 14 weeks | 6-10 hours/week | [high school algebra](FAQ.md#how-can-i-review-the-math-prerequisites) | [chat](https://discord.gg/jvchSm9)
+Courses | Duration | Effort | Prerequisites | Discussion | Status
+:-- | :--: | :--: | :--: | :--: | :--:
+[Introduction to Computer Science and Programming using Python](coursepages/intro-cs/README.md) | 14 weeks | 6-10 hours/week | [high school algebra](FAQ.md#how-can-i-review-the-math-prerequisites) | [chat](https://discord.gg/jvchSm9) | 
 
 ## Core CS
 
@@ -171,11 +171,11 @@ Discrete math (Math for CS) is a prerequisite and closely related to the study o
 `discrete probability`
 `and more`
 
-Courses | Duration | Effort | Notes | Prerequisites | Discussion
-:-- | :--: | :--: | :--: | :--: | :--:
-[Calculus 1A: Differentiation](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.1x+2T2019/about) ([alternative](https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/index.htm)) | 13 weeks | 6-10 hours/week | The alternate covers this and the following 2 courses | [high school math](FAQ.md#how-can-i-review-the-math-prerequisites) | [chat](https://discord.gg/mPCt45F)
-[Calculus 1B: Integration](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.2x+3T2019/about) | 13 weeks | 5-10 hours/week | - | Calculus 1A | [chat](https://discord.gg/sddAsZg)
-[Calculus 1C: Coordinate Systems & Infinite Series](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.3x+1T2020/about) | 6 weeks | 5-10 hours/week | - | Calculus 1B | [chat](https://discord.gg/FNEcNNq)
+Courses | Duration | Effort | Notes | Prerequisites | Discussion | Status
+:-- | :--: | :--: | :--: | :--: | :--: | :--:
+[Calculus 1A: Differentiation](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.1x+2T2019/about) ([alternative](https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/index.htm)) | 13 weeks | 6-10 hours/week | The alternate covers this and the following 2 courses | [high school math](FAQ.md#how-can-i-review-the-math-prerequisites) | [chat](https://discord.gg/mPCt45F) | N/A - previously taken
+[Calculus 1B: Integration](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.2x+3T2019/about) | 13 weeks | 5-10 hours/week | - | Calculus 1A | [chat](https://discord.gg/sddAsZg) | N/A - previously taken
+[Calculus 1C: Coordinate Systems & Infinite Series](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.3x+1T2020/about) | 6 weeks | 5-10 hours/week | - | Calculus 1B | [chat](https://discord.gg/FNEcNNq) | N/A - previously taken
 [Mathematics for Computer Science](https://openlearninglibrary.mit.edu/courses/course-v1:OCW+6.042J+2T2019/about) ([alternative](https://ocw.mit.edu/courses/6-042j-mathematics-for-computer-science-fall-2010/)) | 13 weeks | 5 hours/week | [2015/2019 solutions](https://github.com/spamegg1/Math-for-CS-solutions) [2010 solutions](https://github.com/frevib/mit-cs-math-6042-fall-2010-problems) [2005 solutions](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-042j-mathematics-for-computer-science-fall-2005/assignments/). | Calculus 1C | [chat](https://discord.gg/EuTzNbF)
 
 
@@ -250,11 +250,11 @@ Courses | Duration | Effort | Prerequisites | Discussion
 `Cryptography`
 `and more`
 
-Courses | Duration | Effort | Prerequisites | Discussion
-:-- | :--: | :--: | :--: | :--:
-[Cybersecurity Fundamentals](https://www.edx.org/course/cybersecurity-fundamentals) | 8 weeks | 10-12 hours/week | - | [chat](https://discord.gg/XdY3AwTFK4)
-[Principles of Secure Coding](https://www.coursera.org/learn/secure-coding-principles)| 4 weeks | 4 hours/week | - | [chat](https://discord.gg/5gMdeSK)
-[Identifying Security Vulnerabilities](https://www.coursera.org/learn/identifying-security-vulnerabilities) | 4 weeks | 4 hours/week | - | [chat](https://discord.gg/V78MjUS)
+Courses | Duration | Effort | Prerequisites | Discussion | Status
+:-- | :--: | :--: | :--: | :--: | :--:
+[Cybersecurity Fundamentals](https://www.edx.org/course/cybersecurity-fundamentals) | 8 weeks | 10-12 hours/week | - | [chat](https://discord.gg/XdY3AwTFK4) | ✅ 9/8/25
+[Principles of Secure Coding](https://www.coursera.org/learn/secure-coding-principles)| 4 weeks | 4 hours/week | - | [chat](https://discord.gg/5gMdeSK) | ▶️ 9/10/25
+[Identifying Security Vulnerabilities](https://www.coursera.org/learn/identifying-security-vulnerabilities) | 4 weeks | 4 hours/week | - | [chat](https://discord.gg/V78MjUS) | ▶️ 9/11/25
 
 Choose **one** of the following: