Filter
Top Products
Connecting with the PBX and establishing security rules
101-1620-005 6-5
The administrator can also enable password expiration that forces
subscribers to change passwords at predetermined time intervals.
Changing passwords periodically reduces the chances of an unauthorized
user gaining access to a subscriber’s mailbox.
Table 6-1. Probability of guessing password
Number of digits in the
password
Odds of correctly guessing the
password
11 in 9
21 in 90
31 in 900
4 1 in 9,000
5 1 in 90,000
6 1 in 900,000
7 1 in 9,000,000
8 1 in 90,000,000
9 1 in 900,000,000
10 1 in 9,000,000,000
11 1 in 90,000,000,000
12 1 in 900,000,000,000
13 1 in 9,000,000,000,000
14 1 in 90,000,000,000,000
15 1 in 900,000,000,000,000