• SYN flood (half open attack)

    SYN flooding is a method that the user of a hostile client program can use to conduct a denial-of-service (DoS) attack on a computer server.

  • digital certificate

    A digital certificate is an electronic "passport" that allows a person, computer or organization to exchange information securely over the Internet using the public key infrastructure (PKI). A digi...

  • COBIT

    COBIT  is a framework for developing, implementing, monitoring and improving information technology (IT) governance and management practices.

  • computer forensics (cyber forensics)

    Computer forensics is the application of investigation and analysis techniques to gather and preserve evidence from a particular computing device in a way that is suitable for presentation in a cou...

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  • phishing

    Phishing is an e-mail fraud method in which the perpetrator sends out legitimate-looking email in an attempt to gather personal and financial information from recipients. 

  • Sender Policy Framework (SPF)

    Sender Policy Framework (SPF) is an anti-spam approach in which the Internet domain of an e-mail sender can be authenticated for that sender, thereby discouraging spam mailers, who routinely disguise the origin of their e-mail, a practice known as e-... 

  • security policy

    In business, a security policy is a document that states in writing how a company plans to protect the company's physical and information technology (IT) assets. 

  • snake oil

    In cryptographic and other computer products, snake oil is a negative term used to describe exaggerated claims made by vendors who are overly optimistic or purposely seeking to take advantage of consumers who do not have the expertise to judge a prod... 

  • plaintext

    In cryptography, plaintext is ordinary readable text before being encrypted into ciphertext or after being decrypted. 

  • Public-Key Cryptography Standards (PKCS)

    The Public-Key Cryptography Standards (PKCS) are a set of intervendor standard protocols for making possible secure information exchange on the Internet using a public key infrastructure (PKI). 

  • steganography

    Steganography (pronounced STEHG-uh-NAH-gruhf-ee, from Greek steganos, or "covered," and graphie, or "writing") is the hiding of a secret message within an ordinary message and the extraction of it at its destination. 

  • network encryption (network layer or network level encryption)

    Network encryption (sometimes called network layer, or network level encryption) is a network security process that applies crypto services at the network transfer layer - above the data link level, but below the application level. 

  • OCSP (Online Certificate Status Protocol)

    OCSP (Online Certificate Status Protocol) is one of two common schemes for maintaining the security of a server and other network resources. 

  • intrusion prevention

    Intrusion prevention is a preemptive approach to network security used to identify potential threats and respond to them swiftly.