Which data collection activities on this list are not needed to understand a threat to point$-$of$-$sale data? Choose all that apply.

Group of answer choices

A review of ISAC$-$Retail threat information summary reports over the last year.

Validation of SIEM system alerts triggered by unusual network activity on the point$-$of$-$sale VLAN.

A review of the log streams currently being processed by the SIEM system.

Validation of SIEM system alerts triggered by unusual use of leadership credentials.