Mission: be the global resource for technology, advocacy, research and education in the ongoing pursuit of freedom of speech, privacy rights online, and censorship circumvention.

• Online anonymity
• FL/OSS
• Open (volunteer based) network
• Community: researchers, developers, users, relay operators, [...]
• U.S. 501(c)(3) non-profit organization

Understanding your thread model:

I use encryption (HTTPS, ...) my ISP cannot see my traffic! Maybe it cannot see your traffic (in cleartext), *but* it tracks:

• Websites visited
• Locations logs
• IP address logs
• ..archived for x time: Data retention

Anonymity: different interests for different user groups

Anonymity: different interests for different user groups

Anonymity: different interests for different user groups

Anonymity: different interests for different user groups

Anonymity: different interests for different user groups

How Tor works

Tor's safety comes from diversity

• Diversity of relays
• Diversity of users

Transparency for Tor is key

• FL/OSS
• Public design documents and specifications

But what about the bad people?

• (remember) the millions of daily users
• Still a two-edged sword?
• Good people need Tor much more than bad people need it

Onion services

• Self authenticated
• End-to-end encrypted
• Built-in NAT punching
• Limit surface area
• No need to “exit” from Tor

• About 3% of Tor's traffic has to do with onion services at all
• Onion services are still in the "neat toy" stage
• Terbium labs (and others) found ~7000 useful onion sites

How can you help Tor?

• Run a relay (or a bridge)
• Teach your friends about Tor, and privacy in general
• Help fix -- and fix -- bugs
• Work on open research problems (petsymposium.org)