LGT-92 uses OTAA or ABP?

Devices
1

I have a question, i have this end node and the manual does not says to much, because in the start of the manual says like by default is OTAA but a little bit foward in the manual talk about ABP. Which one is the best option? @brocaar

2

Both are working but otaa is better when you reboot

3

OTAA is better for security.