diff --git a/README-jp.md b/README-jp.md
index 3ad64a0..5d1bb3e 100644
--- a/README-jp.md
+++ b/README-jp.md
@@ -321,6 +321,7 @@ If you enjoy this awesome list and would like to support it, check out my [Patre
### Crypto
- [Applied Crypto Hardening](https://bettercrypto.org/) - Written by [The bettercrypto.org Team](https://bettercrypto.org/).
+- [What is a Side-Channel Attack ?](https://www.csoonline.com/article/3388647/what-is-a-side-channel-attack-how-these-end-runs-around-encryption-put-everyone-at-risk.html) - Written by [J.M Porup](https://www.csoonline.com/author/J.M.-Porup/).
### Web Shell
diff --git a/README-zh.md b/README-zh.md
index 72eb85d..04a1bb6 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -342,6 +342,7 @@ If you enjoy this awesome list and would like to support it, check out my [Patre
### Crypto
- [Applied Crypto Hardening](https://bettercrypto.org/) - Written by [The bettercrypto.org Team](https://bettercrypto.org/).
+- [What is a Side-Channel Attack ?](https://www.csoonline.com/article/3388647/what-is-a-side-channel-attack-how-these-end-runs-around-encryption-put-everyone-at-risk.html) - Written by [J.M Porup](https://www.csoonline.com/author/J.M.-Porup/).
### Web Shell
diff --git a/README.md b/README.md
index b7673bc..1d71c57 100644
--- a/README.md
+++ b/README.md
@@ -318,6 +318,7 @@ If you enjoy this awesome list and would like to support it, check out my [Patre
### Crypto
- [Applied Crypto Hardening](https://bettercrypto.org/) - Written by [The bettercrypto.org Team](https://bettercrypto.org/).
+- [What is a Side-Channel Attack ?](https://www.csoonline.com/article/3388647/what-is-a-side-channel-attack-how-these-end-runs-around-encryption-put-everyone-at-risk.html) - Written by [J.M Porup](https://www.csoonline.com/author/J.M.-Porup/).
### Web Shell