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- Q4922328 subject Q6198468.
- Q4922328 subject Q7153713.
- Q4922328 subject Q7609560.
- Q4922328 subject Q8444457.
- Q4922328 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 and/or denying the recipient use of their own machine (this is similar to computer-based denial of service attacks). This is made easier because the 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.".
- Q4922328 wikiPageExternalLink hacking.security.
- Q4922328 wikiPageExternalLink shacind2.pdf.
- Q4922328 wikiPageExternalLink blackfax.asp.
- Q4922328 wikiPageWikiLink Q11148.
- Q4922328 wikiPageWikiLink Q131406.
- Q4922328 wikiPageWikiLink Q132744.
- Q4922328 wikiPageWikiLink Q17067479.
- Q4922328 wikiPageWikiLink Q448472.
- Q4922328 wikiPageWikiLink Q6198468.
- Q4922328 wikiPageWikiLink Q6313828.
- Q4922328 wikiPageWikiLink Q635758.
- Q4922328 wikiPageWikiLink Q6468188.
- Q4922328 wikiPageWikiLink Q7153713.
- Q4922328 wikiPageWikiLink Q7609560.
- Q4922328 wikiPageWikiLink Q8444457.
- Q4922328 wikiPageWikiLink Q852508.
- Q4922328 wikiPageWikiLink Q931092.
- Q4922328 comment "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 and/or denying the recipient use of their own machine (this is similar to computer-based denial of service attacks).".
- Q4922328 label "Black fax".