ProductsCustomersPressCompanySupportPartners


Product Overview
Enterprise Gateway
Desktop Overview
Email Threat Info Center
Advisories
Statistics








0-9  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z


419 Scam: This is the generic name for what is known as Nigerian email Scam.  This covers all he permutations (countries) from which the same sort of email may seem to originate (e.g. Belize, Kuwait, Zambia, etc).  The email offers typically offers you part of a large fortune if your help the sender “remove” the fortune from their country. 

809 Scam:  This email scam is actually a phone scam, in which a message (usually an email) tries to get you to call the “toll-free” 809 number.  The problem is that the 809 area code is actually not toll-free.  In fact the caller is billed at up to $25 per minute when they call and stay on-hold waiting to speak to a person who never answers.

Attack: Intentional act of attempting to bypass one or more computer security controls.
Authenticate: To verify the identity of a user, user device, or other entity, or the integrity of data stored, transmitted, or otherwise exposed to unauthorized modification in an information system, or to establish the validity of a transmission.
Authentication: Security measure designed to establish the validity of a transmission, message, or originator, or a means of verifying an individual’s authorization to receive specific categories of information.
Denial of Service (DoS): A means of attack against a computer, server or network; the result of the attack is to disable or shutdown the system or network.
Dictionary attack: An attack that uses a brute-force technique of successively trying all the words in some large, exhaustive list for the purpose of finding good email addresses for a given domain.
Distributed Denial of Service (DDos): An attack that uses a "community network" to initiate a "denial of service”.   DDos programs receive instruction from a controller program in order to carry out an attack - the attack itself is designed to disable or shutdown the target of the attack.
DNS:  Domain Name System.  The primary purpose of the DNS is to allow us to locate a web site by using its domain name rather than its IP address.   For example, when you type in "http://www.mailfrontier.com," the computer doesn't immediately know that it should look for MailFrontier's Web site. Instead, it sends a request to the nearest DNS server, which finds the correct IP address.
DNS Spoofing: Assuming the DNS name of another system by either corrupting the name service cache of a victim system, or by compromising a domain name server for a valid domain.
Emoticon:  These are the little text-based faces and objects that you often see in e-mail and online chat, for example :-)
Firewall:  A computer firewall is used to protect a networked server or client machine from damage by unauthorized users. The firewall can be either hardware or software-based.
Gateway:  A gateway is either hardware or software that acts as a bridge between two networks so that data can be transferred between a number of computers.
HTTP: "HyperText Transfer Protocol." This is the protocol used to transfer data over the World Wide Web.
In-the-Wild: A virus that is in circulation. Currently about 250 viruses exist in the wild.
Malware (Malicious Software): Programs that are intentionally designed to perform some unauthorized (and often harmful or undesirable) act such as viruses, worms, and trojans.
MIME: Multipurpose Internet Mail Extensions.  The standard for defining the types of files attached to standard Internet mail messages. The MIME standard is also used in many situations where one computer program needs to communicate with another program about what kind of file is being sent.
Phishing: From a business point-of-view the term has its roots in the fact that Internet scammers use lures to "fish" for users' computer related information (account names, passwords, etc) in an attempt to gain access to a company’s information systems.
Port: An internet port is a number that indicates what kind of protocol a server on the Internet is using. For example, Web servers typically are listed on port 80. Web browsers use this port by default when accessing Web pages. FTP uses port 21, e-mail uses port 25, etc.
Probe: An attempt to gather information about an information system for the apparent purpose of circumventing its security controls.
Proxy: Software agent that performs a function or operation on behalf of another application or system while hiding the details involved.
Real-time Black List (RBL):  A list of IP addresses which are known or suspected sources of Spam email.  There are hundreds of different lists each having slightly different criteria for getting on and getting off the respective list.  The lists can range in makeup from containing IPs for Dial up lines to Open Relays to “known” spammer IPs.

Spam: To indiscriminately send unsolicited, unwanted, irrelevant, or inappropriate messages, especially commercial advertising in mass quantities. Noun: electronic "junk mail".

Spoofing: Unauthorized use of legitimate identification and authentication data, however it was obtained, to mimic a subject different from the attacker. Impersonating, masquerading, piggybacking, and mimicking are forms of spoofing.
Threat: Any circumstance or event with the potential to adversely impact an information system through unauthorized access, destruction, disclosure, modification of data, and/or denial of service.
Trojan Horse: A program that either pretends to have, or is described as having, a set of useful or desirable features, but actually contains a damaging payload. Most frequently, the usage is shortened to "Trojan". Trojan Horses are not technically viruses, since they do not replicate
Virus: Self-replicating, malicious code that attaches itself to an application program or other executable system component and leaves no obvious signs of its presence.
Vulnerability: Weakness in an information system, system security procedures, internal controls, or implementation that could be exploited.
Worm: Independent program that replicates from machine to machine across network connections often clogging networks and information systems as it spreads.