P - Definitions

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  • P

    P versus NP (polynomial versus nondeterministic polynomial)

    P versus NP (polynomial versus nondeterministic polynomial) refers to a theoretical question presented in 1971 by Leonid Levin and Stephen Cook, concerning mathematical problems that are easy to solve (P type) as opposed to problems that are difficult to solve (NP type).

  • P3P (Platform for Privacy Preferences)

    P3P (Platform for Privacy Preferences) is a protocol that specifies a way to determine if a Web site's security policies meet a user's privacy requirements.

  • PA-DSS (Payment Application Data Security Standard)

    Payment Application Data Security Standard (PA-DSS) is a set of requirements that are intended to help software vendors develop secure payment applications that support PCI DSS compliance.

  • packet monkey

    On the Internet, a packet monkey is someone (see cracker, hacker, and script kiddy) who intentionally inundates a Web site or network with data packets, resulting in a denial-of-service situation for users of the attacked site or network.

  • Palladium

    Palladium is a plan from Intel, AMD, and Microsoft to build security into personal computers and servers at the microprocessor level.

  • parameter tampering

    Parameter tampering is a form of Web-based hacking event (called an attack) in which certain parameters in the Uniform Resource Locator (URL) or Web page form field data entered by a user are changed without that user's authorization... (Continued)

  • pass the hash attack

    A pass the hash attack is an NT LAN Manager (NTLM)-based technique in which an attacker steals a hashed user credential and, without cracking it, reuses it to trick a Windows-based authentication system into creating a new authenticated session on the same network.

  • passphrase

    A passphrase is a string of characters longer than the usual password (which is typically from four to 16 characters long) that is used in creating a digital signature (an encoded signature that proves to someone that it was really you who sent a message) or in an encryption or a decryption of a message.

  • password

    A password is an unspaced sequence of characters used to determine that a computer user requesting access to a computer system is really that particular user.

  • password hardening

    Password hardening is any one of a variety of measures taken to make it more difficult for an intruder to circumvent the authentication process. Password hardening may take the form of multifactor authentication, by adding some component to the username/password combination, or may be policy-based... (Continued)

  • password synchronization

    Password synchronization is an authentication process that coordinates user passwords across various computers and computing devices so a user only has to remember a single password instead of multiple passwords for different machines or devices.

  • Patch Tuesday

    Patch Tuesday is the unofficial name of Microsoft's scheduled release of the newest security fixes for its Windows operating system and related software applications, as detailed in the Windows Security Updates Guide.

  • payload

    On the Internet, a payload is either: The essential data that is being carried within a packet or other transmission unit.

  • PCI assessment

    A PCI assessment is an audit of the 12 credit card transaction compliance requirements required by the Payment Card Industry Data Security Standard.

  • PCI DSS 12 requirements

    PCI DSS 12 requirements is a set of security controls that businesses are required to implement to protect credit card data and comply with the Payment Card Industry Data Security Standard (PCI DSS).

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