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  2. Security printing - Wikipedia

    en.wikipedia.org/wiki/Security_printing

    The advantage of a digital press is that in a single pass through the printer a void pantograph with all the variable data can be printed on plain paper. Copy-evident paper, sometimes marketed as ‘security paper’, is pre-printed void pantograph paper that was usually produced on an offset or flexographic press. The quality of the void ...

  3. Printer tracking dots - Wikipedia

    en.wikipedia.org/wiki/Printer_tracking_dots

    Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and photocopiers produce on every printed page that identifies the specific device that was ...

  4. Cipher - Wikipedia

    en.wikipedia.org/wiki/Cipher

    With even a small amount of known or estimated plaintext, simple polyalphabetic substitution ciphers and letter transposition ciphers designed for pen and paper encryption are easy to crack. [5] It is possible to create a secure pen and paper cipher based on a one-time pad, but these have other disadvantages.

  5. Aristocrat Cipher - Wikipedia

    en.wikipedia.org/wiki/Aristocrat_Cipher

    The method creates a chain-reaction when a letter is decrypted, this means that after decrypting a word, the letters of that word can be used to decrypt other words. [ 9 ] Depending on the type of cipher, a brute force attack method can be used, which attempts to use all possible keys for the encryption. [ 10 ]

  6. Data Secure by AOL - AOL Help

    help.aol.com/articles/data-secure-by-aol

    Encrypt the data you send: Private Wifi uses premium-level security to encrypt everything you send and receive on your computer or mobile device over public WiFi. Real-time data protection: DataMask by AOL creates a secure browsing experience by using anti-keylogging and anti-phishing software that helps protect you from internet threats and ...

  7. Letterlocking - Wikipedia

    en.wikipedia.org/wiki/Letterlocking

    Letterlocking is the act of folding and securing a written message (such as a letter) on papyrus, parchment, or paper, without requiring it to be contained in an envelope or packet. It is a traditional method of document security that utilizes folding and cutting. [ 1 ]

  8. Security paper - Wikipedia

    en.wikipedia.org/wiki/Security_paper

    Barack Obama's birth certificate on security paper.. Security paper is a paper used in security printing that incorporates features that can be used to identify or authenticate a document as original, e.g., watermarks or invisible fibres in paper, or features that demonstrate tamper evidence when fraud is attempted, e.g., to remove or alter print such as amounts or signatures on a cheque.

  9. Windows Fax and Scan - Wikipedia

    en.wikipedia.org/wiki/Windows_Fax_and_Scan

    Windows Fax and Scan is an integrated faxing and scanning application introduced in Windows Vista and included in the Business, Enterprise, and Ultimate Windows Vista editions as the replacement for the Fax Console of Windows XP; it is available in all versions of Windows 7, Windows 8, Windows 10 (x86/x64) and Windows 11 (x64), [1] but not on ARM64 versions of Windows 10 and Windows 11.