security clearance

  • 1Cryptography For Dummies , Chey Cobb
    Cryptography is the most effective way to achieve data security and is essential to e-commerce activities such as online shopping, stock trading, and banking This invaluable introduction to the… 2965.15 руб электронная книга

  • 2SNOWDEN , RALL, TED (2015)
    As many as 1. 4 million citizens with security clearance saw some or all of the same documents revealed by Edward Snowden. Why did he, and no one else, decide to step forward and take on the risks… 1169 руб