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Xavfsizlik - ta’siri natijasida nomaqbul holatlarga olib keluvchi atayin
yoki tasodifiy, ichki va tashqi beqarorlovchi faktorlarga qarshi tizimning
tura olish xususiyati. Yana - ma’lumotlar fayllarining va dasturlarning
avtorizatsiyalanmagan shaxslar (jumladan tizim xodimi), kompyuterlar
yoki dasturlar tomonidan ishlatilishi, ko’rib chiqilishi va
modifikatsiyalanishi mumkin bo’lmagan holat.
Security - the property of a system to withstand external or internal
destabilizing factors, the effect of which may be unwanted state or
behaviour. Still - a state in which the data files and programs may not be
used, viewed and modified by unauthorized persons (including the
system staff), computers or software.