This application both blocks unwanted calls and helps manage a blacklist.

Vault is an all-in-one, advanced App Locker and Lockscreen app designed to protect your Android device from intruders! Now put passwords wherever you want to!

WiFiReaver. Wireless File Reaver.

Automatic key injection using Dictionary for Wireless Networks.

Inyector automático de claves mediante Diccionario para Redes Wireless.

http://WiFiReaver.blogspot.com
http://Buckynet.blogspot.com

Secure your privacy by screenlock and applock. Snaps pictures of intruders. Highest rated Screen Lock on Google Play! ★★★★★

Safe Browsing Anti-Malware offers a mobile browsing experience free of Malware and Phishing in any app or browser.
Once a website has been suspected of containing Malware or Phishing it is blocked immediately, protecting the user from being offended.