The reasons for damage followed by the inaccessibility of
data can be divided into two groups:
Physical
electrical (power
loss, surge, polarity reversal ...)
manufacturing defects
liquid intrusion
excess temperature (overheating)
dusty environment
gravitation (fall, shock ...)
human error or abuse
nature
disasters (floods, fire, earthquake ...)
Software
application or the operation system collapses
virus infection
human error or abuse (
erasing, overwriting, formatting ...)