HIKVISION DS-72xxHGHI-SH - Password Strength Levels Explained

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Password Strength Levels
STRENGTH LEVEL
DESCRIPTION
Level 0 (Risky)
NVRs will not accept a Level 0 password
Password length is fewer than eight characters,
contains only one type of character, is the same
as the user name, and/or is the mirror writing of
the user name. This type of password will not be
accepted.
Level 1 (Weak)
NVRs will accept a Level 1 password
Password contains two kinds of characters. The
combination is number + lowercase letter or
number + uppercase letter, and the password
length is at least eight characters. This type of
password will be accepted.
Level 2 (Medium/Fair)
NVRs will accept a Level 2 password
Password contains two types of characters. The
combination is neither number + lowercase letter
nor number + uppercase letter, and the password
length is at least eight characters. This type of
password will be accepted.
Level 3 (Strong)
NVRs will accept a Level 3 password
Password contains more than three types of
characters, and the password length is at least
eight characters. This type of password will be
accepted.
NOTE: Types of characters are lowercase letters, uppercase letters,
numbers, and special characters. Only ASCII characters are
allowed.