Send photo to email when entering wrong password

Step 1 : Prerequisites installation (Optional if available)

• ffmpeg (Photo app)
  
• s-nail  (Mail app)
  

For more ways to take picture refer this article.

$ sudo apt update

$ sudo apt install ffmpeg s-nail

Step 2 : Create App password from google account

Check this to create app passwords.

Step 3 : Change the email and password(App password) in the script

Create file

sudo nano /usr/local/bin/takepic

filename=`date +%s`
ffmpeg -f video4linux2 -s vga -i /dev/video0 -vframes 1 /tmp/$filename.jpg


echo ' ALERT Usage detected:'  `date` `who` | s-nail -a /tmp/$filename -S smtp-use-starttls -S ssl-verify=ignore -S smtp-auth=login -S smtp=smtp://smtp.gmail.com:587 -S from="username@gmail.com" -S smtp-auth-user=username@gmail.com -S smtp-auth-password=ashalkshalkhsbzxn -S ssl-verify=ignore  -s "LOGIN ALERT" -v "tousername@gmail.com"

exit 0

 Save and close.

$ sudo chmod +x /usr/local/bin/takepic 

Step 4 : Change the pam.d

Backup the original file

$ sudo cp /etc/pam.d/common-auth /etc/pam.d/common-auth.orginal

$ sudo gedit /etc/pam.d/common-auth 

• Update
• auth    [success=1 default=ignore]    pam_unix.so nullok_secure
• To
• auth    [success=2 default=ignore]    pam_unix.so nullok_secure
• Add the following, next to the updated line
  
• auth    [default=ignore]               pam_exec.so seteuid /usr/local/bin/takepic

Then save it. Try and have fun

That's it folks!