Scoutsuite is used to find any security loop hole in a cloud.It uses different API to gather configuration data.after that it highlights the area which contains risk.It does not uses different web pages.it directly shows the area which has risk.Pacu is used to test the cloud security.It uses different penetration testing to find any flaws in cloud.It protects the system from different online attacks,viruses and vulnerabilities.Pawler uses command line interface to provide security to audits and incident responce.it provides network monitoring,logging activity monitoring.it protect the data stored on cloud from different vulnerabilities.