There are many use cases, Before deploying into server
- Try to check this with developer(Expert) If anybody used which is hacked
- First preference go with Qlik Certified extensions
- Malware / Firewall need to test related the security (Super Hackers)
- Qlik is not supporting If you simply using non-trusted extensions
Before develop something, think If placed (The Right information | To the right people | At the Right time | In the Right place | With the Right context)