Use the vocabulary from the list provided to complete the sentences that follow.

Firewall

Humans

Longer

Ransomware

Social Engineering

The WannaCry attack of May $2017$ involved $\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

Someone posing as an IT support person and calling a user to get her username and password is an example of $\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

Passwords that are $\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ offer the best protection against brute$-$force attacks.

Any device that filters TCP$/$IP traffic based on IP address or port number, among other things, is a $\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

$\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ is the weakest link in any security implementation.