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Hashcash is a cryptographic hash-based proof-of-work algorithm that requires a selectable amount of work to compute, but the proof can be verified efficiently. For email uses, a textual encoding of a hashcash stamp is added to the header of an email to prove the sender has expended a modest amount of CPU time calculating the stamp prior to ...
The term "phishing" is said to have been coined by the well known spammer and hacker in the mid-90s, Khan C. Smith. [3] The first recorded mention of the term is found in the hacking tool AOHell (according to its creator), which included a function for attempting to steal the passwords or financial details of America Online users.
Webhooks are "user-defined HTTP callbacks". [2] They are usually triggered by some event, such as pushing code to a repository, [3] a new comment or a purchase, [4] a comment being posted to a blog [5] and many more use cases. [6] When that event occurs, the source site makes an HTTP request to the URL configured for the webhook.
An example of an IDN homograph attack; the Latin letters "e" and "a" are replaced with the Cyrillic letters "е" and "а".The internationalized domain name (IDN) homograph attack (sometimes written as homoglyph attack) is a method used by malicious parties to deceive computer users about what remote system they are communicating with, by exploiting the fact that many different characters look ...
Nathan Blecharczyk, one of the founders of Airbnb, who paid his way through Harvard by providing spammers hosting services. [1] [2]Shane Atkinson, who was named in an interview by The New Zealand Herald as the man behind an operation sending out 100 million emails per day in 2003, who claimed (and appeared) to honor unsubscribe requests, and who claimed to be giving up spamming shortly after ...
The spam that a user receives is often related to the online user's activities. For example, a user may have been subscribed to an online newsletter that the user considers to be spam. This online newsletter is likely to contain words that are common to all newsletters, such as the name of the newsletter and its originating email address.
A spambot is a computer program designed to assist in the sending of spam.Spambots usually create accounts and send spam messages with them. [1] Web hosts and website operators have responded by banning spammers, leading to an ongoing struggle between them and spammers in which spammers find new ways to evade the bans and anti-spam programs, and hosts counteract these methods.
The passive method of adding random words to a small spam was ineffective as a method of attack: only 0.04% of the modified spam messages were delivered. The active attack involved adding random words to a small spam and using a web bug to determine whether the spam was received. If it was, another Bayesian system was trained using the same ...