please help me with this. i know that "secure" is a term that is hard to define, but i hope that you can give me at least a bit of an idea.
i'm using a d-link dwr921 lte router with openwrt 18.06.1 (will upgrade to 18.06.2 when i have a new sim card).
i found this interesting statement:
which says that "LEDE is hardened by default and can be used right away, without being worried".
--> does this apply to openwrt as well?
--> is the preconfigured firewall exactly the same on all devices or does the dwr921 have settings that other devices don't have?
--> are there any possible scenarios where the default firewall configuration of openwrt would be not secure enough? (e.g. regarding the device i connect to the router with)?
--> in the next months, i plan to read and learn as much as i can about iptables, netfilter, etc. should i wait until then before i start using the router and its os or do you think that the preconfigured firewall is secure enough so I can start using the router right now?
would it be helpful to post a detailed description of my computer's operating system and my browsing habits or is this unnecessary?
i know that nobody can give me a guarantee and that terms like "secure" can be defined in various ways, i'm just asking for your opinions. thank you