Those using the network probably won't know if they've been unmasked by the hack until there's a knock at the door. If you're just using it for web innocent purposes I doubt there will ever be a knock on the door.
Developers of software used to access Tor - an otherwise hard-to-reach part of the internet - have disclosed that an attack on the network may have unmasked users for five months.
The Tor Project said that it believed the assault was designed to de-anonymise the net addresses of people operating or visiting hidden sites.
However, it said it was not sure exactly how users had been "affected".