Unmasking Tor users with DNS by Mark Stockley.
From the post:
Researchers at the KTH Royal Institute of Technology, Stockholm, and Princeton University in the USA have unveiled a new way to attack Tor and deanonymise its users.
The attack, dubbed DefecTor by the researchers’ in their recently published paper The Effect of DNS on Tor’s Anonymity, uses the DNS lookups that accompany our browsing, emailing and chatting to create a new spin on Tor’s most well established weakness; correlation attacks.
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If you want the lay-person’s explanation of the DNS issue with Tor, see Mark’s post. If you want the technical details, read The Effect of DNS on Tor’s Anonymity.
The immediate take away for the average user is this:
Donate, volunteer, support the Tor project.
Your privacy or lack thereof is up to you.