Security measures 10 Cryptography 6 Computer security 4 Politics and government 4 Prevention 4 Quantum theory 4 Terrorism 4 Computer networks 3 Data encryption (Computer science) 3 History 3 Influence 3 Quantum communication 3 Aerodynamics 2 Airplanes 2 Algorithms 2 Arabs 2 Data protection 2 Design and construction 2 Digital images 2 Digital watermarking 2 Electronic funds transfers 2 Foreign relations 2 Islam 2 Islam in mass media 2 Muslim women 2 Muslims 2 National security 2 Neural networks (Computer science) 2 September 11 Terrorist Attacks, 2001 2 Watermarking 2