• Main Menu
  • Security

    • Trojan Virus

      Trojan Virus

      A Trojan virus is a piece of software designed to look like a useful file or software program but performs a possibly nefarious function once installed on a client computer. The virus takes its name from the “Trojan Horse” from Greek mythology setup outside of the city of Troy. Trojan horse viruses differ from other

    • What Are Default Passwords?

      The following are default usernames and passwords for many systems: AS/400 qsecofr qsecofr /* master security officer */ qsysopr qsysopr /* system operator */ qpgmr also qpgmr /* default programmer */ ibm password ibm 2222 ibm service qsecofr 1111111 qsecofr 2222222 qserv qserv qsvr qsvr secofr secofr qsrv ibmce1 DECserver ACCESS SYSTEM Dynix (The library

    • How a Magnetic Card Reader Works

      How a Magnetic Card Reader Works

      A magnetic card is a rectangular plastic object (credit/debit card) that contains either a magnetic object embedded within the card or a magnetic stripe on the card’s exterior. A magnetic card can store any form of digital data. The electronic devices designed to read stored information from a magnetic card do so either when someone

    • Forensic Science

      Forensic Science

      The word forensic comes from the Latin word forensis, which means “before the forum,” and refers to something “of, pertaining to, or used in a court of law.” In this day and age, it almost always refers to a method of obtaining criminal evidence in order to use it in a court of law. Forensic

    • Known Plaintext Attack

      Known Plaintext Attack

      In cryptography, the known plaintext attack, or KPA, is an attack based on having samples of both the plaintext and corresponding encrypted or ciphertext for that information available. This information is used to conduct an analysis of the data in order to determine the secret key used to encrypt and decrypt the information. Historical ciphers

    • Smart Card Software

      Smart Card Software

      A smart card contains an integrated circuit (IC) chip containing a central processing unit (CPU), random access memory (RAM) and non-volatile data storage. Data stored in the smart card’s microchip can be accessed only through the chip operating system (COS). Smart cards provide a secure, portable platform for “any time, anywhere” computing that can contain

    • How to Decrypt Cisco Passwords

      How to Decrypt Cisco Passwords

      If  ‘service password-encryption’ is not configured on the Cisco device, simply read the plain text passwords from the configuration file. If ‘service password-encryption’ is configured on the Cisco device, most of the passwords are encrypted with a weak encryption algorithm (Type 7) that is easy to decrypt. Once there is access to the Cisco configuration

    • How to Change an AOL Password

      How to Change an AOL Password

      There are two circumstances that can cause someone to want to change his/her AOL password: 1) forgetting the AOL password and needing to recover it and 2)  to change the AOL password. The latter can be because the AOL password has leaked to someone or the user wants to adhere to the good practice of

    • How to Clear MSN Search History

      How to Clear MSN Search History

      When using MSN and doing a search, you are using the Bing software which is Microsoft’s search engine. However, one of the things that you might want to do is clear your search history. Perhaps you were searching fro something on a computer that you don’t want anyone to know. Maybe you just don’t want

    • XOR Encryption

      XOR Encryption

      The XOR encryption is a simple symmetric cipher that is used in many applications where security is not a defined requirement. The XOR Operator XOR (Exclusive OR) is a bitwise operator from binary mathematics. The six bitwise operators, as defined in the C programming language, are: Operation Symbol AND & Inclusive OR | Exclusive OR

    118 queries in 0.366 seconds.