| Telnet | A terminal emulation protocol that allows remote log in across a TCP/IP-based network, which can be a LAN, a WAN or the Internet. The user must have a valid account name and password on the remote computer in order to gain access, unlike FTP, which allows access to all incoming callers. |
| Threat | An action or event that might prejudice security.
An event, process, activity (act), substance, or quality of being perpetuated by one or more threat agents, which, when realized, has an adverse effect on organization assets, resulting in losses attributed to:
* Direct loss
* Related direct loss
* Delays or denials
* Disclosure of sensitive information
* Modification of programs or data bases
* Intangible, i.e., good will, reputation, etc.
Threats can be active (where there is a deliberate attempt to alter the authorized state of the data or system), or passive (where the threat arises from negligence, poor coding or misconfiguration). Compare this difference to active and passive attacks. |
| Transmission Control Protocol/Internet Protocol (TCP/IP) | A compilation of network and transport level protocols that allow a PC to speak the same language as other PCs on the Internet or other networks. |
| Transport Layer Security - TLS | Transport Layer Security (TLS) is an Internet security protocol based on and very similar to SSL version 3. It provides end-to-end encryption. |
| Trojan | In the context of computer software, a Trojan horse is a malicious program that is disguised as legitimate software. The term is derived from the classical myth of the Trojan horse. They may look useful or interesting (or at the very least harmless) to an unsuspecting user, but are actually harmful when executed. |
| Trojan.Family.Variant | Trojan Program (Trojan type programs) |
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