diff --git a/how-to-encrypt-sign-and-decrypt-messages-using-pgp-on-macos-adding-privacy-to-email/README.md b/how-to-encrypt-sign-and-decrypt-messages-using-pgp-on-macos-adding-privacy-to-email/README.md
index a4f6103..65778d4 100644
--- a/how-to-encrypt-sign-and-decrypt-messages-using-pgp-on-macos-adding-privacy-to-email/README.md
+++ b/how-to-encrypt-sign-and-decrypt-messages-using-pgp-on-macos-adding-privacy-to-email/README.md
@@ -8,13 +8,13 @@ Publication date: 2020-06-18T00:00:00.000Z
 
 # How to encrypt, sign and decrypt messages using PGP on macOS (adding privacy to email)
 
+[![How to sign, encrypt and decrypt messages using PGP on macOS (adding privacy to email) - YouTube](how-to-sign-encrypt-and-decrypt-messages-using-pgp-on-macos-adding-privacy-to-email.png)](https://www.youtube.com/watch?v=mE8fL5Fu8x8 "How to sign, encrypt and decrypt messages using PGP on macOS (adding privacy to email) - YouTube")
+
 > WARNING: this is a getting started guide. For a hardened guide, see https://github.com/drduh/YubiKey-Guide.
 
 ## Installation guide
 
-**Step 1: install Homebrew**
-
-See https://brew.sh/
+**Step 1: install [Homebrew](https://brew.sh/)**
 
 ```shell
 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
@@ -26,7 +26,7 @@ See https://brew.sh/
 brew analytics off
 ```
 
-**Step 3: install GnuPG**
+**Step 3: install [GnuPG](https://gnupg.org/)**
 
 ```shell
 brew install gnupg
diff --git a/how-to-encrypt-sign-and-decrypt-messages-using-pgp-on-macos-adding-privacy-to-email/how-to-sign-encrypt-and-decrypt-messages-using-pgp-on-macos-adding-privacy-to-email.png b/how-to-encrypt-sign-and-decrypt-messages-using-pgp-on-macos-adding-privacy-to-email/how-to-sign-encrypt-and-decrypt-messages-using-pgp-on-macos-adding-privacy-to-email.png
new file mode 100644
index 0000000..7f21628
Binary files /dev/null and b/how-to-encrypt-sign-and-decrypt-messages-using-pgp-on-macos-adding-privacy-to-email/how-to-sign-encrypt-and-decrypt-messages-using-pgp-on-macos-adding-privacy-to-email.png differ
diff --git a/how-to-remove-exif-metadata-from-images-on-macos-to-prevent-geolocation-and-hardware-leaks/README.md b/how-to-remove-exif-metadata-from-images-on-macos-to-prevent-geolocation-and-hardware-leaks/README.md
new file mode 100644
index 0000000..9b2d3bd
--- /dev/null
+++ b/how-to-remove-exif-metadata-from-images-on-macos-to-prevent-geolocation-and-hardware-leaks/README.md
@@ -0,0 +1,45 @@
+<!--
+Title: How to remove EXIF metadata from images on macOS to prevent geolocation and hardware leaks
+Description: Learn how to remove EXIF metadata from images on macOS to prevent geolocation and hardware leaks.
+Author: Sun Knudsen <https://github.com/sunknudsen>
+Contributors: Sun Knudsen <https://github.com/sunknudsen>
+Publication date: 2020-06-25T00:00:00.000Z
+-->
+
+# How to remove EXIF metadata from images on macOS to prevent geolocation and hardware leaks
+
+## Installation guide
+
+**Step 1: install [Homebrew](https://brew.sh/)**
+
+```shell
+/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
+```
+
+**Step 2: disable analytics**
+
+```shell
+brew analytics off
+```
+
+**Step 3: install [ExifTool](https://exiftool.org/)**
+
+```shell
+brew install exiftool
+```
+
+---
+
+## Usage guide
+
+**View EXIF metadata**
+
+```shell
+exiftool -n /path/to/image.jpg
+```
+
+**Remove EXIF metadata**
+
+```shell
+exiftool -all= /path/to/image.jpg
+```