9 posts tagged with "Privacy"

For decades, phone numbers have been treated as a secure and personal way to identify and communicate with individuals. They feel private, direct, and uniquely tied to a person. In reality, however, phone numbers function less like private credentials and more like persistent identifiers that expose users to tracking, profiling, and exploitation.

As digital communication evolves, it is worth reexamining a fundamental assumption: that a phone number is an acceptable foundation for privacy. It is not.

Why Sovereign Speech Is the First Layer of Digital Freedom

Over the past decade, Ethereum has built something unprecedented: a neutral, persistent digital substrate where value, rules, and coordination mechanisms can exist without centralized ownership. It gives us shared state without a sovereign.

But shared state is not enough.

Before finance, before governance, before markets — there is communication. And if communication is not sovereign, none of the layers built on top of it are stable.

Sanctuary technologies begin there.

Vitalik Buterin recently wrote a thread on X about why surveillance is bad — and why calling it "dystopian" isn't enough. He pointed to a powerful article on Iran's surveillance state and argued that we need to be precise about why this stuff matters. Below are reflections on his post, with a few reactions to the lines that stuck with me.

The rapid advancement of artificial intelligence has made it harder to tell legitimate human interactions from automated or AI-driven impersonations. Modern AI can convincingly replicate voices and generate realistic video calls, enabling malicious actors to exploit technology for financial gain, identity theft, and unauthorized data collection. Fraudsters often impersonate banks, government officials, business associates, or family members via robocalls, text messages, and video calls—and some use deepfake technologies to make scams highly convincing.

The scale of the problem is staggering. U.S. consumers received over 52 billion robocalls in 2025, a large share of which were spam or scam-related. Nearly three-quarters of U.S. adults report experiencing some form of online scam or attack, often through phone calls, text messages, or emails at least weekly. No demographic is immune: Deloitte reports that Generation Z is more likely to fall victim to online scams than Baby Boomers.

In December 2024, Vitalik Buterin published "What I would love to see in a wallet" — a detailed wishlist for the ideal Ethereum wallet. It wasn't just about sending tokens. It was about reimagining how users interact with Web3: seamless cross-chain experiences, robust account security, ZK-wrapped identities, and privacy that actually works.

At Spritz, we've been building exactly this — not just for finance, but for communication.

Internet-based voice and video calling is often assumed to be a basic layer of digital infrastructure. Yet current estimates indicate that approximately 29 percent of the global population—nearly 2.3 billion people—lives in countries where internet calling (VoIP) is restricted, censored, throttled, or banned in some form.

For leaders building global technology platforms or shaping digital policy, this is not a marginal edge case. It represents a structural constraint affecting billions of users, with consequences for regulation, product design, analytics, and global scalability.

Just hours ago, Vitalik Buterin declared "The decentralized renaissance is coming" — and called on developers to buidl decentralized. This is exactly what Spritz has been doing.

Around 2.3 billion people in 17 countries are affected by full bans, partial bans, throttling, or interference with popular messaging and calling applications. These restrictions impact text messaging, voice calls, and video calls, often across national borders. As a result, families, friends, and communities are unable to communicate freely.

A major reason these restrictions are effective is how most communication platforms identify users.

Communication is a universal human right recognized by the United Nations. Yet billions of people are denied meaningful access to it.

Nearly a third of the world does not have reliable access to voice or video communication. Families are separated not only by geography but by digital barriers. Geo blocking and censorship shut down conversations between people who simply want to speak to one another.

We believe this is unacceptable.