Solution : https://service.sap.com/sap/support/notes/791756 (SAP Service marketplace login required)
Key words : 
security warning pops, security warning reads, terms its_execute, error arises, asecurity check, 620 patch level 15, newer patch, file information, information, fileoperations
Related Notes : 
       
| 563161 | SAP GUI, SAP ITS & SAP IGS patches on Service Marketplace | 
| 335521 | ITS patch installation of kernel files | 
| 330793 | Downloading patches |