"Gutmann method" meaning in English

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  "lang_code": "en",
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      "glosses": [
        "An algorithm for securely erasing the contents of a hard drive by writing a number of different patterns over the existing data."
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          "erasing",
          "erase"
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          "hard drive",
          "hard drive"
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          "pattern",
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      "raw_glosses": [
        "(computing) An algorithm for securely erasing the contents of a hard drive by writing a number of different patterns over the existing data."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
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        "Gutmann method"
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  "lang_code": "en",
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        "An algorithm for securely erasing the contents of a hard drive by writing a number of different patterns over the existing data."
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          "computing#Noun"
        ],
        [
          "algorithm",
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          "secure"
        ],
        [
          "erasing",
          "erase"
        ],
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          "hard drive",
          "hard drive"
        ],
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          "pattern",
          "pattern"
        ]
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        "(computing) An algorithm for securely erasing the contents of a hard drive by writing a number of different patterns over the existing data."
      ],
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        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
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}