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  2. Secret Service code name - Wikipedia

    en.wikipedia.org/wiki/Secret_Service_code_name

    President John F. Kennedy, codename "Lancer" with First Lady Jacqueline Kennedy, codename "Lace". The United States Secret Service uses code names for U.S. presidents, first ladies, and other prominent persons and locations. [1] The use of such names was originally for security purposes and dates to a time when sensitive electronic ...

  3. Classified information in the United States - Wikipedia

    en.wikipedia.org/wiki/Classified_information_in...

    The United States has three levels of classification: Confidential, Secret, and Top Secret. Each level of classification indicates an increasing degree of sensitivity. Thus, if one holds a Top Secret security clearance, one is allowed to handle information up to the level of Top Secret, including Secret and Confidential information. If one ...

  4. List of U.S. security clearance terms - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._security...

    T3 or T3R - Tier 3 or Tier 3 Reinvestigation, now replace all NACLC. T5 and T5R - Tier 5 or Tier 5 Reinvestigation, now replace SSBI and SBPR respectively. Yankee White – An investigation required for personnel working with the President and Vice President of the United States. Obtaining such clearance requires, in part, an SSBI.

  5. WhatsApp's new 'secret codes' add an extra layer of privacy ...

    techcrunch.com/2023/11/30/whatsapps-new-secret...

    WhatsApp is rolling out a new “secret codes” feature that adds another layer of privacy to your locked conversations on the messaging platform. The app launched locked chats earlier this year...

  6. Cryptanalysis - Wikipedia

    en.wikipedia.org/wiki/Cryptanalysis

    The goal of cryptanalysis is for a third party, a cryptanalyst, to gain as much information as possible about the original ("plaintext"), attempting to "break" the encryption to read the ciphertext and learning the secret key so future messages can be decrypted and read.

    • List of HTTP status codes - Wikipedia
      List of HTTP status codes - Wikipedia
      wikipedia.org
  7. The Unofficial Facebook Advanced Search Engine | TechCrunch

    techcrunch.com/2015/12/02/facebook-advanced-search

    Facebook doesn’t have an easy-to-use advanced search engine, so one guy built his own. “ Search Is Back ” lets you use familiar drop-down menus to find people by city, relationship status ...

  8. Code (cryptography) - Wikipedia

    en.wikipedia.org/wiki/Code_(cryptography)

    Code (cryptography) A portion of the "Zimmermann Telegram" as decrypted by British Naval Intelligence codebreakers. The word Arizona was not in the German codebook and had therefore to be split into phonetic syllables. Partially burnt pages from a World War II Soviet KGB two-part codebook. In cryptology, a code is a method used to encrypt a ...

  9. A Woman Hid This Secret Code in Her Silk Dress in 1888 ... - AOL

    www.aol.com/lifestyle/woman-hid-secret-code-her...

    A Woman Hid This Secret Code in Her Silk Dress in 1888—and Codebreakers Just Solved It. Tim Newcomb. January 2, 2024 at 10:46 AM. Breaking the 1880s Silk Dress Cryptogram Courtesy of Sara Rivers ...

  10. The Secret Code (Seinfeld) - Wikipedia

    en.wikipedia.org/wiki/The_Secret_Code_(Seinfeld)

    "The Secret Code" is the 117th episode of NBC sitcom Seinfeld. This was the seventh episode of the seventh season. It aired on November 9, 1995. In this episode, George is unwilling to share his ATM code with his fiancée Susan, and finds himself entrapped

  11. Pigpen cipher - Wikipedia

    en.wikipedia.org/wiki/Pigpen_cipher

    The pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) [2] [3] is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid. The example key shows one way the letters can be assigned to the grid.