He used a powerful machine

He bribed the operators

He had inside help

He guessed some passwords

Ignoring failed access attempts in event logs

Installing firewalls to restrict access to a

network

Sharing passwords with colleagues

Using common names or dictionary words as passwords

To make it difficult for

hackers to guess the password

To test the system regularly using event logs

To make it easier for users to remember the

password

To allow easy access to the system

Gaining unauthorized access to computer systems

Managing computer networks

Creating computer hardware

Developing computer software

Phoning up someone to get their password

Using a callback system to verify identity

Typing in “guest” or “demo”

as the ID and password

Installing firewalls to restrict access

Sending fake emails with password requests

Pretending to be from the company and asking for passwords

Hacking into the person's phone to get the

password

Guessing the password based on personal information

object code

source file

source code

executable

file

Show

that the proposition is true for the first term of the sequence.

Is the

proposition true for the first term of the sequence?

It is

shown that the proposition is true for the first term of the sequence.

If

the proposition were true for any member of a sequence, its truth for the

successor of the member would follow as a logical necessity.

the best

best

better

more better