Archived (PDF) from the original. a b Walsh, lawrence (August 4, 1993). I: Investigations and prosecutions". Final report of the independent counsel for Iran/Contra matters. Independent council for Iran/Contra matters. Archived from the original on Retrieved "Interim Report March 2005" (PDF). Archived from the original (PDF).
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Archived from the original on Retrieved 22 February 2017. "Business notes office equipment". Archived from the original. "Fighting Back Against Identity Theft". "Paper Shredder Safety Alert" (PDF) (Press release). Consumer Product Safety commission. Archived (PDF) from the original on 22 november 2008. "New times, new storage media, new standards". Archived from the original on 23 February 2017. Retrieved 22 February 2017. . External link in publisher ( help ) "NSA/css evaluated products list door for high security presentation crosscut paper shredders" (PDF).
Shredders display certain device-specific characteristics, " fingerprints like the exact spacing of the blades, the degree and pattern of their wear. By closely examining the shredded material, the minute variations of size of the paper strips and the microscopic marks on their edges may be able to be linked to a specific machine. The forensic identification of typewriters.) Recycling of waste edit The resulting shredded paper can be recycled in a number of ways, including: Animal bedding — to produce a warm and comfortable bed for animals. 21 void fill and packaging — void fill for the transportation of goods. Briquettes — an alternative to non-renewable fuels. Insulation — shredded newsprint mixed with flame-retardant chemicals and glue to create a spray-able insulation material for wall interiors and the underside of roofing. Citation needed see plan also edit references edit abbot Augustus Low Waste-paper receptacle february 2, 1909 Patent filing woestendiek, john (February 10, 2002). "The compleat History of shredding".
As it took three dozen people six years to reconstruct 300 of the 16,000 bags, the Fraunhofer-ipk institute has developed the "Stasi-Schnipselmaschine" ( Stasi snippet machine ) for computerized reconstruction and is testing it in resume a pilot project. The darpa shredder Challenge 2011 called upon computer scientists, puzzle enthusiasts, and anyone else with an interest in solving complex problems, to compete for up to 50,000 by piecing together a series of shredded documents. The Shredder Challenge consisted of five separate puzzles in which the number of documents, the document subject matter and the method of shredding were varied to present challenges of increasing difficulty. To complete each problem, participants were required to provide the answer to a puzzle embedded in the content of the reconstructed document. The overall prizewinner and prize awarded was dependent on the number and difficulty of the problems solved. Darpa declared a winner on December 2, 2011 (the winning entry was submitted 33 days after the challenge began) - the winner was " All your Shreds Are belong. " using a combination system that used automated sorting to pick the best fragment combinations to be reviewed by humans. 19 Forensic identification edit The individual shredder that was used to destroy a given document may be sometimes be of forensic interest.
Robert Johnson of the national Association for Information Destruction 17 has stated that there is a huge demand for document reconstruction. Several companies offer commercial document reconstruction services. For maximum security, documents should be shredded so that the words of the document go through the shredder horizontally (i.e. Perpendicular to the blades). Many of the documents in the Enron Accounting scandals were fed through the shredder the wrong way, making them easier to reassemble. In 2003, there was an effort underway to recover the shredded archives of the Stasi, the east German secret police. 18 There are "millions of shreds of paper that panicked Stasi officials threw into garbage bags during the regime's final days in the fall of 1989".
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14 Destruction of such documents was a violation of Swiss laws. 15 Unshredding and forensics edit resume An example of a shredded and reassembled document during Iran hostage crisis In theory shredded documents should not be able to be reassembled and read. In practice the feasibility of this depends on, (a) how well the shredding has been done, and (b) the resources put into reconstruction. The cost benefit analysis will depend on whether it is a simple personal matter, corporate espionage, a criminal matter - or if national security is at stake. Factors making reconstruction more likely include not only the cutting method, but also the orientation of the material when fed, and whether the shredded material is further randomized afterwards. Even without a full reconstruction, in some cases useful information can be obtained by forensic analysis of the paper, ink, and cutting method. Reconstruction examples edit After the Iranian revolution and the takeover of the.
Embassy in Tehran in 1979, Iranians enlisted local carpet weavers who reconstructed the pieces by hand. The recovered documents would be later released by the Iranian government in a series of books called "Documents from the us espionage den". 16 The us government subsequently improved its shredding techniques by adding pulverizing, pulping, and chemical decomposition protocols. Modern computer technology considerably speeds up the process of reassembling shredded documents. The strips are scanned on both sides, and then a computer determines how the strips should be put together.
Grinders have a rotating shaft with cutting blades that grind the paper until it is small enough to fall through a screen. Security levels edit There are a number of standards covering the security levels of paper shredders, including: din - deutsches Institut für Normung edit The previous din 32757 standard has now been replaced with din 66399. This is complex, 8 but can be summarized as below: level P-1 12 mm wide strips of any length (For shredding general internal documents) level P-2 6 mm wide strips of any length level P-3 2 mm wide strips of any length or 320 mm particles of any width. (For highly sensitive documents and personal data subject to high protection requirements) level P-4 160 mm particles with width 6 mm level P-5 30 mm particles with width 2 mm level P-6 10 mm particles with width 1 mm (Espionage-safe, for extremely high demands of security such as military or government. They provide a list of evaluated shredders.
9 Destruction of evidence edit There have been many instances where it is alleged that documents have been improperly or illegally destroyed by shredding, including: Oliver North shredded documents relating to the IranContra affair between november 21 and november 25, 1986. 10 During the trial, north testified that on november 21, 22, or 24, he witnessed John poindexter destroy what may have been the only signed copy of a presidential covert action finding that sought to authorize cia participation in the november 1985 Hawk missile shipment. 10 According to the report of the paul Volcker Committee, between April and December 2004, kofi Annan 's Chef de cabinet, iqbal riza, authorized thousands of United Nations documents shredded, including the entire chronological files of the oil-for-food Programme during the years 1911 The Union. The shredding was disclosed to the public through the work of Christoph meili, a security guard working at the bank who happened to wander by a room where the shredding was taking place. Also in the shredding room were books from the german reichsbank. 12 They listed stock accounts for companies involved in the holocaust, including basf, degussa, and Degesch. 13 They also listed real-estate records for Berlin properties that had been forcibly taken by the nazis, placed in Swiss accounts, and then claimed to be owned by ubs.
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Shredding console Shredding method, and output edit As well as size and capacity, shredders are classified according to the method they use; and the size and shape of the shreds they produce. Strip-cut shredders use rotating knives to cut narrow strips as long as the original sheet of paper. Cross-cut or confetti -cut shredders use two contra-rotating drums to cut rectangular, parallelogram, or lozenge (diamond-shaped) shreds. Particle-cut shredders create tiny square or circular pieces. Cardboard shredders are designed specifically to shred corrugated material into either strips or a mesh summary pallet. Disintegrators and granulators repeatedly cut the paper at random until the particles like are small enough to pass through a mesh. Hammermills pound the paper through a screen. Pierce-and-tear shredders have rotating blades that pierce the paper and then tear it apart.
6 7 Some shredders designed for use in shared workspaces or department copy rooms have noise reduction. Citation needed mobile shredding truck edit larger organisation or shredding services sometimes use "mobile shredding trucks typically constructed as a box truck with an industrial-size paper shredder mounted inside and space for storage of the shredded materials. Such a unit may also offer the shredding of CDs, dvds, hard drives, credit cards, and uniforms, among other things. Citation needed kiosks edit a shredding kiosk is an automated retail machine (or kiosk ) that allows public access to a commercial or industrial-capacity paper shredder. This is an alternative solution to the use of a personal or business paper shredder, where the public can use a faster and more powerful shredder, paying for each shredding event rather than purchasing shredding equipment. Citation needed services edit some companies outsource their shredding to shredding services. These companies either shred on-site, with mobile shredder trucks or have off-site shredding facilities. Documents that need to be destroyed are often placed in locked bins that are emptied periodically.
for paper shredding. More recently, concerns about identity theft have driven increased personal use, 4 with the us federal Trade commission recommending that individuals shred financial documents before disposal. 5, information privacy laws like facta, hipaa and the GrammLeachBliley act are driving shredder usage, as businesses and individuals take steps to securely dispose of confidential information. Multi-cut scissors used to shred paper Shredders range in size and price from small and inexpensive units designed for a certain amount of pages, to large units used by commercial shredding services that cost hundreds of thousands of dollars and can shred millions of documents. While the very smallest shredders may be hand-cranked, most shredders are electrically powered. Shredders over time have added features to improve the shredder user's experience. Many now reject paper that is fed over capacity to avoid jams; others have safety features to reduce risks.
Ehinger's company, eba maschinenfabrik, manufactured the first cross-cut paper shredders in 1959 and continues to do so to this day as eba krug priester Gmbh. History the of use edit, until the mid-1980s, it was rare for paper shredders to be used by non-government entities. A high-profile example of their use was when the. Embassy in Iran used shredders to reduce paper pages to strips before the embassy was taken over in 1979, but some documents were reconstructed from the strips, as detailed below. After Colonel, oliver North told Congress that he used a schleicher cross-cut model to shred. Iran-Contra documents, sales for that company increased nearly 20 percent in 1987. 3, paper shredders became more popular among. Citizens with privacy concerns after the 1988, supreme court decision in, california.
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Paper shredder with built-in wastebasket, a paper shredder is a mechanical device used to cut paper into either strips or fine particles. Government organizations, businesses, and private individuals use shredders to destroy private, confidential, or otherwise sensitive documents. The first paper shredder is credited to prolific inventor. Abbot Augustus Low, whose patent was filed on February 2, 1909. 1, his invention was however summary never manufactured. Adolf Ehinger's paper shredder, based on a hand-crank pasta maker, was manufactured in 1935 in Germany. Supposedly he needed to shred his anti-nazi propaganda to avoid the inquiries of the authorities. 2, ehinger later marketed his shredders to government agencies and financial institutions converting from hand-crank to electric motor.