Self defense can be defined as a set of physical, psychological, and verbal techniques that can be used to defend oneself in situations where one may be a target of verbal assault, physical abuse, or rape. It also involves knowing how to avoiding certain situations where we know we may be hurt. Self defense skills are important knowledge for any activist, and the "Self-Care and Self-Defense Manual for Feminist Activists" (developed by Marina Bernal, Artemisa, and Elige), contains step by step instructions on how we can implement these skills in our everyday activist work. There are three types of self defense: psychological, physical, and legal.

Activists, bloggers, journalists and students in Egypt are using their mobile phones to alert their networks if they are in danger or have been arrested using SMS text messaging and the micro-blogging service Twitter. Egyptian activists who have informed their network of arrest by police have proved this to be an effective means of getting the word out quickly of their detention so that fellow activists can pressure the government for a quick release, or mount a longer-term campaign in the result of formal charges.

When Egyptian journalist and blogger Wael Abbas returned to Egypt from a forum in Sweden in June of 2009 he was detained at Cairo Airport by authorities and his passport, papers and laptop were taken. Abbas is known for his blog posts exposing incidents of torture and police brutality in Egypt, and is outspoken about political reform and democracy in Egypt. When he was detained at Cairo Airport, Abbas was able to use his Twitter account to alert his followers and give numerous updates on the situation. Issandr El Amrani of The Arabist reported that Abbas’s tweets reached the president of an Egyptian human rights organization, Hisham Kassem, who is also a Twitter user. After hearing about Abbas’s detention Kassem started tweeting about his efforts to dispatch a human rights lawyer to talk to the Egyptian authorities to get Abbas released. Abbas was eventually freed within hours. El Amrani writes, “It may not be a Twitter revolution, but it's a very practical, transparent and engaging way to rally people around a cause.”