meliwonn zemaryah melitta

0 views
Skip to first unread message

Mireille Duhon

unread,
Aug 3, 2024, 12:55:29 AM8/3/24
to dirananhy

It would be easy to create a system which detects if a large number of chats are only coming from a small number of accounts with short conversation lengths. Even if it just flagged the accounts and sent them to a human to review them.

We have many ways to deal with that including outlier analysis using time-series estimates, we can filter the IP and the % of tokens per message, we have lots of good strategies to implement to restrain this type of exploit. It is not a cause of cheat, it is a serious security problem that Openai have to deal with!

I have a simple, custom rolled chat here: ( - essentially: ajax chat, php backend, javascript listing of chat messages, logged-in user input only ) that suffers from being able to be spammed. What are some simple systems to prevent spamming of a chat?

Put an increasing delay on how fast a user can reply. So after each message post store next_reply_time as a timestamp of NOW + 1 second. If they reply before the time has reached, ignore it and give a "Reply too fast" warning and set the next_reply_time to NOW + 2 seconds, and so on. This way if they stack up messages too fast, you'll ignore them for longer periods of time. This delay can of course be based on reputation.

Spamming is the use of messaging systems to send multiple unsolicited messages (spam) to large numbers of recipients for the purpose of commercial advertising, non-commercial proselytizing, or any prohibited purpose (especially phishing), or simply repeatedly sending the same message to the same user. While the most widely recognized form of spam is email spam, the term is applied to similar abuses in other media: instant messaging spam, Usenet newsgroup spam, Web search engine spam, spam in blogs, wiki spam, online classified ads spam, mobile phone messaging spam, Internet forum spam, junk fax transmissions, social spam, spam mobile apps,[1] television advertising and file sharing spam. It is named after Spam, a luncheon meat, by way of a Monty Python sketch about a restaurant that has Spam in almost every dish in which Vikings annoyingly sing "Spam" repeatedly.[2]

Spamming remains economically viable because advertisers have no operating costs beyond the management of their mailing lists, servers, infrastructures, IP ranges, and domain names, and it is difficult to hold senders accountable for their mass mailings. The costs, such as lost productivity and fraud, are borne by the public and by Internet service providers, which have added extra capacity to cope with the volume. Spamming has been the subject of legislation in many jurisdictions.[3]

There was also an effort to differentiate between types of newsgroup spam. Messages that were crossposted to too many newsgroups at once, as opposed to those that were posted too frequently, were called "velveeta" (after a cheese product), but this term did not persist.[12]

In the late 19th century, Western Union allowed telegraphic messages on its network to be sent to multiple destinations. The first recorded instance of a mass unsolicited commercial telegram is from May 1864, when some British politicians received an unsolicited telegram advertising a dentist.[13]

The earliest documented spam (although the term had not yet been coined[14]) was a message advertising the availability of a new model of Digital Equipment Corporation computers sent by Gary Thuerk to 393 recipients on ARPANET on May 3, 1978.[10] Rather than send a separate message to each person, which was the standard practice at the time, he had an assistant, Carl Gartley, write a single mass email. Reaction from the net community was fiercely negative, but the spam did generate some sales.[15][16]

The first major commercial spam incident started on March 5, 1994, when a husband and wife team of lawyers, Laurence Canter and Martha Siegel, began using bulk Usenet posting to advertise immigration law services. The incident was commonly termed the "Green Card spam", after the subject line of the postings. Defiant in the face of widespread condemnation, the attorneys claimed their detractors were hypocrites or "zealots", claimed they had a free speech right to send unwanted commercial messages, and labeled their opponents "anti-commerce radicals". The couple wrote a controversial book entitled How to Make a Fortune on the Information Superhighway.[16]

An early example of nonprofit fundraising bulk posting via Usenet also occurred in 1994 on behalf of CitiHope, an NGO attempting to raise funds to rescue children at risk during the Bosnian War. However, as it was a violation of their terms of service, the ISP Panix deleted all of the bulk posts from Usenet, only missing three copies[citation needed].

Within a few years, the focus of spamming (and anti-spam efforts) moved chiefly to email, where it remains today.[8] By 1999, Khan C. Smith, a well known hacker at the time, had begun to commercialize the bulk email industry and rallied thousands into the business by building more friendly bulk email software and providing internet access illegally hacked from major ISPs such as Earthlink and Botnets.[17]

Email spam, also known as unsolicited bulk email (UBE), or junk mail, is the practice of sending unwanted email messages, frequently with commercial content, in large quantities.[19] Spam in email started to become a problem when the Internet was opened for commercial use in the mid-1990s. It grew exponentially over the following years, and by 2007 it constituted about 80% to 85% of all e-mail, by a conservative estimate.[20] Pressure to make email spam illegal has resulted in legislation in some jurisdictions, but less so in others. The efforts taken by governing bodies, security systems and email service providers seem to be helping to reduce the volume of email spam. According to "2014 Internet Security Threat Report, Volume 19" published by Symantec Corporation, spam volume dropped to 66% of all email traffic.[21]

An industry of email address harvesting is dedicated to collecting email addresses and selling compiled databases.[22] Some of these address-harvesting approaches rely on users not reading the fine print of agreements, resulting in their agreeing to send messages indiscriminately to their contacts. This is a common approach in social networking spam such as that generated by the social networking site Quechup.[23]

Instant messaging spam makes use of instant messaging systems. Although less prevalent than its e-mail counterpart, according to a report from Ferris Research, 500 million spam IMs were sent in 2003, twice the level of 2002.[24]

Newsgroup spam is a type of spam where the targets are Usenet newsgroups. Spamming of Usenet newsgroups actually pre-dates e-mail spam. Usenet convention defines spamming as excessive multiple posting, that is, the repeated posting of a message (or substantially similar messages). The prevalence of Usenet spam led to the development of the Breidbart Index as an objective measure of a message's "spamminess".

Forum spam is the creation of advertising messages on Internet forums. It is generally done by automated spambots. Most forum spam consists of links to external sites, with the dual goals of increasing search engine visibility in highly competitive areas such as weight loss, pharmaceuticals, gambling, pornography, real estate or loans, and generating more traffic for these commercial websites. Some of these links contain code to track the spambot's identity; if a sale goes through, the spammer behind the spambot earns a commission.

Mobile phone spam is directed at the text messaging service of a mobile phone. This can be especially irritating to customers not only for the inconvenience, but also because of the fee they may be charged per text message received in some markets.To comply with CAN-SPAM regulations in the US, SMS messages now must provide options of HELP and STOP, the latter to end communication with the advertiser via SMS altogether.

Despite the high number of phone users, there has not been so much phone spam, because there is a charge for sending SMS. Recently, there are also observations of mobile phone spam delivered via browser push notifications. These can be a result of allowing websites which are malicious or delivering malicious ads to send a user notifications.[25]

Facebook and Twitter are not immune to messages containing spam links. Spammers hack into accounts and send false links under the guise of a user's trusted contacts such as friends and family.[26] As for Twitter, spammers gain credibility by following verified accounts such as that of Lady Gaga; when that account owner follows the spammer back, it legitimizes the spammer.[27]Twitter has studied what interest structures allow their users to receive interesting tweets and avoid spam, despite the site using the broadcast model, in which all tweets from a user are broadcast to all followers of the user.[28] Spammers, out of malicious intent, post either unwanted (or irrelevant) information or spread misinformation on social media platforms.[29]

Spreading beyond the centrally managed social networking platforms, user-generated content increasingly appears on business, government, and nonprofit websites worldwide. Fake accounts and comments planted by computers programmed to issue social spam can infiltrate these websites.[30]

Blog spam is spamming on weblogs. In 2003, this type of spam took advantage of the open nature of comments in the blogging software Movable Type by repeatedly placing comments to various blog posts that provided nothing more than a link to the spammer's commercial web site.[31]Similar attacks are often performed against wikis and guestbooks, both of which accept user contributions.Another possible form of spam in blogs is the spamming of a certain tag on websites such as Tumblr.

In actual video spam, the uploaded video is given a name and description with a popular figure or event that is likely to draw attention, or within the video a certain image is timed to come up as the video's thumbnail image to mislead the viewer, such as a still image from a feature film, purporting to be a part-by-part piece of a movie being pirated, e.g. Big Buck Bunny Full Movie Online - Part 1/10 HD, a link to a supposed keygen, trainer, ISO file for a video game, or something similar. The actual content of the video ends up being totally unrelated, a Rickroll, offensive, or simply on-screen text of a link to the site being promoted.[32] In some cases, the link in question may lead to an online survey site, a password-protected archive file with instructions leading to the aforementioned survey (though the survey, and the archive file itself, is worthless and does not contain the file in question at all), or in extreme cases, malware.[33] Others may upload videos presented in an infomercial-like format selling their product which feature actors and paid testimonials, though the promoted product or service is of dubious quality and would likely not pass the scrutiny of a standards and practices department at a television station or cable network.

c01484d022
Reply all
Reply to author
Forward
0 new messages