Tor Hidden Service

Just how secure is it?

 

It's probably secure enough for anything that you want to do. Consider that there are many very evil hidden service sites, and that none (as far as I know) have ever been compromised through systemic vulnerabilities. Anonymous did expose some paedophiles last year, but that was a phishing attack, not an attack on Tor. Hidden services (and Tor generally) are vulnerable to traffic analysis by global adversaries, however, so don't do anything that would attract their attention. The tor-talk list is a good place to ask about these issues.

 

It is very stable because it's all a decentralization topology.

https://en.wikipedia.org/wiki/Single_Point_of_Failure

To view a Hidden Service you use in serial order 6 Tor Nodes from different nations. If one Node fail another step in.

Some Tor Nodes injecting malicious content over HTTP connections. You can defend yourself with this block list.

http://xqz3u5drneuzhaeo.onion/users/badtornodes/
http://xqz3u5drneuzhaeo.onion/users/badtornodes/howto.html