Digital Security for Everyone

introductory digital security talk for broad audience

1. Digital Security for Everyone Jennifer Helsby @redshiftzero Chicago Hack Night November 10, 2015 @CryptopartyChi
2. But I have nothing to hide.
3. But I have nothing to hide. Yes, you do.
4. But I have nothing to hide. Yes, you do. Your medical information, your financial information, your political beliefs, your sexual identity, nudity, …
9. People have been defending their own privacy for centuries with whispers, darkness, envelopes, closed doors, secret handshakes, and couriers. - Eric Hughes
10. There is nothing illegal or subversive about using a tool to protect your privacy online.
11. What is Cryptoparty? • A grassroots international movement to provide spaces for people of all types to get training in digital security • Non-commercial and free • Significant interest among activism, law, journalism, LGBT communities
13. Threat Modeling • What information am I trying to protect? • Who am I trying to protect it from (my adversary)? • What is my adversary able and willing to do to find out? • What happens if I fail?
14. • Goal is NOT: Perfect security • Goal is: Make surveillance significantly more difficult and costly • Win: Exert slightly more effort than your adversary is willing to commit
15. HTTP
16. https://www.eff.org/https-everywhere HTTPS
17. End-to-End (e2e) Encryption • Off-the-Record (OTR) messaging: IM encryption • Clients: Pidgin/Adium • PGP “Pretty Good Privacy”: Email encryption • Clients: Enigmail, Mailvelope
18. Signal Private Messenger • End-to-end encrypted calls and messages • Encrypted content, not metadata • Support on Android and Apple IOS • Free and open- source
19. Anonymity • Anonymity means you can’t tell who did what • Tor anonymizes your identity from the destination website, your ISP, employer, government, etc. • Browse the web anonymously with the Tor Browser Bundle https://www.torproject.org
21. Entry node or “guard” relay Middle relay Exit node Encrypted Unencrypted
22. protect your privacy help teach support these tools and the orgs that make them HTTPS Everywhere Signal Tor
23. protect your privacy help teach support these tools and the orgs that make them
24. Thanks! Next Cryptoparty: 2pm Saturday December 5th, 2015 at South Side Hackerspace HTTPS Everywhere Signal Tor