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Zero-knowledge proofs explained Part 2: Non-interactive zero-knowledge proofs
In part 1 of our zero-knowledge proof series, we explained how a zero-knowledge proof could work when the verifier and the prover interact with each other. An interactive zero-knowledge proof has the ...
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Meet Federico Tenga: The guy who teaches North Koreans about Bitcoin
Despite being the most hermetic country on Earth, North Korea is certainly no stranger to cyberspace—in both its uses and abuses. Despite a tiny local internet user base and just a few dozen local w...
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ExpressVPN's 2017 Cyber Monday and Black Friday VPN Discount!
***ExpressVPN's 2017 Cyber Monday deal is over, but you can still get 35% off a one year subscription!*** Black Friday is back, which means it’s nearly time for Cyber Monday 2017! Black Friday 2017 ...
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Zero-knowledge proofs explained: Part 1
Zero-knowledge proofs explained Part 2: Non-interactive zero-knowledge proofs Cryptography mostly concerns itself with secure communications and includes hiding information from adversaries and authen...
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An interview with Mark Burdon on the sensor society phenomenon
Our devices, as convenient as they may be, are getting creepily good at collecting data. Phones, cars, and even carpets are packed full of sensors that can detect and record day-to-day activities with...
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An interview with Bruce Schneier on the Internet of Things, global surveillance, and cybersecurity
Bruce Schneier is a world-renowned cryptographer and security technologist whom the Economist has dubbed an “internet-security guru.” Schneier has authored a dozen books since 1993, with his next ...
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How you could lose everything with Bitcoin
With the value of cryptocurrencies skyrocketing into the $100 billion range, it’s easy to get infected by the biggest “digital gold rush” since the dot com bubble. But while everyone with half a...
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Whistleblowing guide: How to protect your sources
** This is part three of ExpressVPN's whistleblowing guide. ** Part 1: Whistleblowing guide: Blowing the whistle is tough Part 2: Whistleblowing guide: How to stay anonymous when blowing the whistle P...
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The best ways to secure your Bitcoins
Not only has Bitcoin’s value gone up over the past year, but the available options for Bitcoin storage have also increased. The choice can be especially intimidating for Bitcoin novices. No matter w...
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Meet OSTIF, the privacy advocates who make the internet safer by auditing its code
ExpressVPN talks to Derek Zimmer: President and CEO of the Open Source Technology Improvement Fund (OSTIF), about his organization, the audit of OpenVPN, and the future of internet privacy tools. The ...
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