About: Black fax

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The term black fax refers to a prank fax transmission, consisting of one or more pages entirely filled with a uniform black tone. The sender's intention is generally to use up as much of the recipient's fax ink, toner, or thermal paper as possible, thus costing the recipient money, as well as denying the recipient use of their own machine (similar to computer-based denial of service attacks). This is made easier because fax transmission protocols compress the solid black image very well, so a very short fax call can produce many pages.

Attributes	Values
rdf:type	yago:Abstraction100002137 yago:Act100030358 yago:Activity100407535 yago:Antic100427580 yago:Diversion100426928 yago:Event100029378 yago:PracticalJoke100514128 yago:PsychologicalFeature100023100 yago:YagoPermanentlyLocatedEntity yago:WikicatPracticalJokes
rdfs:label	Black fax (en) Czarny faks (pl) Svart fax (sv)
rdfs:comment	Czarny faks – rodzaj faksu wysłany do odbiorcy składający się z jednej lub kilku stron całkowicie wypełnionych kolorem czarnym. Jest to rodzaj fizycznej blokady usług, ponieważ najczęściej celem czarnego faksu jest zużycie całego tonera, aby nie można było już odbierać faksów. Czarne faksy były m.in. wykorzystywane przez haktywistów np. w trakcie protestów grupy Anonymous w Syrii w związku z zablokowaniem internetu. (pl) The term black fax refers to a prank fax transmission, consisting of one or more pages entirely filled with a uniform black tone. The sender's intention is generally to use up as much of the recipient's fax ink, toner, or thermal paper as possible, thus costing the recipient money, as well as denying the recipient use of their own machine (similar to computer-based denial of service attacks). This is made easier because fax transmission protocols compress the solid black image very well, so a very short fax call can produce many pages. (en) Termen svart fax syftar på en typ av sabotage där en eller flera helt svarta sidor skickas via fax till en mottagare som man vill skada. Avsändarens avsikt är att så mycket som möjligt av adressatens toner, bläck, värmekänsligt papper eller hårddiskutrymme skall konsumeras, för att på så sätt försvåra mottagarens användning av sin maskinella utrustning och/eller förorsaka denne kostnader (se också Denial of Service). Faxprotokollets komprimeringsteknik hjälper här till, eftersom en helt svart sida krymps till en minimal kodlängd; på så sätt kan ett mycket kort fax producera många sidor hos mottagaren. (sv)
dcterms:subject	Fax Practical jokes Sabotage Denial-of-service attacks
Wikipage page ID	433024 (xsd:integer)
Wikipage revision ID	1113792162 (xsd:integer)
Link from a Wikipage to another Wikipage	Prank Denial-of-service attack List of practical joke topics Fax Lace card Fax Fax server Junk fax Practical jokes Sabotage Denial-of-service attacks Toner Zip bomb Denial of service
Link from a Wikipage to an external page	https://web.archive.org/web/20080920170019/http:/www.usdoj.gov/usao/nj/press/files/pdffiles/shacind2.pdf http://www.wordspy.com/words/blackfax.asp
sameAs	Black fax Black fax Black fax Black fax Black fax Black fax Black fax
dbp:wikiPageUsesTemplate	dbt:Reflist dbt:Short_description
has abstract	The term black fax refers to a prank fax transmission, consisting of one or more pages entirely filled with a uniform black tone. The sender's intention is generally to use up as much of the recipient's fax ink, toner, or thermal paper as possible, thus costing the recipient money, as well as denying the recipient use of their own machine (similar to computer-based denial of service attacks). This is made easier because fax transmission protocols compress the solid black image very well, so a very short fax call can produce many pages. Black faxes have been used to harass large institutions or government departments, to retaliate against the senders of junk faxes, or merely as simple pranks. The basic principle of a black fax can be extended to form a black fax attack. In this case, one or more sheets are fed halfway through the sender's fax machine and taped end to end, forming an endless loop that cycles through the machine. Not only can solid black be used, but also images which will repeat endlessly on the receiver's machine until its toner runs out. The introduction of computer-based facsimile systems (combined with integrated document imaging solutions) at major corporations now means that black faxes are unlikely to cause problems for them. On the other hand, the ability of computer modems to send faxes offers new avenues for abuse. A program could be used to generate hundreds of pages of highly compressed, pure black – or huge volumes of relevant-looking, original, non-repeating high-black-density junk, just as effective but far more difficult to counteract – and send them very quickly to the target fax machine. Black faxes and fax loops are similar (in both intention and implementation) to lace cards. (en) Czarny faks – rodzaj faksu wysłany do odbiorcy składający się z jednej lub kilku stron całkowicie wypełnionych kolorem czarnym. Jest to rodzaj fizycznej blokady usług, ponieważ najczęściej celem czarnego faksu jest zużycie całego tonera, aby nie można było już odbierać faksów. Czarne faksy były m.in. wykorzystywane przez haktywistów np. w trakcie protestów grupy Anonymous w Syrii w związku z zablokowaniem internetu. (pl) Termen svart fax syftar på en typ av sabotage där en eller flera helt svarta sidor skickas via fax till en mottagare som man vill skada. Avsändarens avsikt är att så mycket som möjligt av adressatens toner, bläck, värmekänsligt papper eller hårddiskutrymme skall konsumeras, för att på så sätt försvåra mottagarens användning av sin maskinella utrustning och/eller förorsaka denne kostnader (se också Denial of Service). Faxprotokollets komprimeringsteknik hjälper här till, eftersom en helt svart sida krymps till en minimal kodlängd; på så sätt kan ett mycket kort fax producera många sidor hos mottagaren. Svarta fax har använts för att besvära institutioner eller myndigheter, för att hämnas på avsändare av skräpfax eller enbart som practical jokes. Å ena sidan har moderna, effektiva datasystem för hantering av fax minskat risken att dessa svarta sidor verkligen ställer till problem, å andra sidan har möjligheten att helt låta datorn hantera och sända fax, gjort det möjligt att snabbt skapa och sända hundratals sidor av hårt komprimerade fax. Den minskande användningen av fax generellt som kommunikationsmedia, torde dock göra denna typ av attacker mindre sannolika. (sv)
prov:wasDerivedFrom	wikipedia-en:Black_fax?oldid=1113792162&ns=0
page length (characters) of wiki page	3936 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Black_fax
is Link from a Wikipage to another Wikipage of	Project Chanology Scientology Denial-of-service attack Internet censorship in Australia List of practical joke topics Timeline of events associated with Anonymous Black faxes Lace card Anonymous (hacker group) Fax Junk fax Telecomix Stop Huntingdon Animal Cruelty Zip bomb Scientology and the Internet Fax loop Blackfaxing Mobius fax
is Wikipage redirect of	Black faxes Fax loop Blackfaxing Mobius fax
is foaf:primaryTopic of	wikipedia-en:Black_fax

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