*[https://securityinabox.org/en/chapter-10 How to use mobile phones as securely as possible] *[https://securityinabox.org/en/chapter-11 How to use smartphones as securely as possible] *[https://securityinabox.org/en/portable_security Mobile Security] *[https://ssd.eff.org/ Surveillance Self Defense] *[https://securityinabox.org/en/chapter-9 How to protect yourself and your data when using social networking sites]