I'm using qlik sense and love it, I have also been using some nice extensions which downloaded from internet.
Today, I tried https://www.vizlib.com/protected/downloads , it looks good, but somehow it checked & have the user log-ins on my Qlik server to check the licenses. It raised me a concern that if the downloaded extensions of qlik sense are secure, my data, information on Qlik app might be at risk with those extensions.
Thanks!