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Security, Privacy & Zero-Knowledge

Practical articles on encryption, secure sharing, message expiry, and privacy-by-design patterns you can actually use in real work.

What is Zero-Knowledge Encryption?
Featured post Zero-Knowledge

2026-03-04

What is Zero-Knowledge Encryption?

A plain-English explanation of how your data stays private — and why even we can't read your messages.

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Encrypted Dead Man's Switch: What It Is and When It Makes Sense

2026-05-22

Future Delivery

Encrypted Dead Man's Switch: What It Is and When It Makes Sense

A dead man's switch is not only for spy fiction or catastrophic scenarios. In encrypted form, it becomes a practical tool for continuity, succession, and last-resort disclosure.

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How to Send a Message After Death Without Trusting an Inbox

2026-05-14

Future Delivery

How to Send a Message After Death Without Trusting an Inbox

If a final message matters, it should not depend on someone remembering a password or a mail provider keeping a draft safe for years. Encryption changes the model.

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GDPR, Zero-Knowledge Encryption, and the Breach Notification Problem

2026-05-10

Zero-Knowledge

GDPR, Zero-Knowledge Encryption, and the Breach Notification Problem

GDPR requires breach notification within 72 hours. Zero-knowledge encryption changes the calculus — because a breach of ciphertext may not be a breach of personal data.

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What Is Time Vault and When to Use It

2026-05-02

Future Delivery

What Is Time Vault and When to Use It

Time Vault is a message that cannot be opened before a date you choose. The use cases range from board-level strategy to letters for your children.

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Secure File Drop: A Private Alternative to WeTransfer

2026-04-24

Secure Sharing

Secure File Drop: A Private Alternative to WeTransfer

WeTransfer and similar services can read every file you upload. Here's who that affects, why it matters, and how zero-knowledge file sharing works differently.

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What Is Message TTL and How to Set It Wisely

2026-04-16

Secure Sharing

What Is Message TTL and How to Set It Wisely

TTL — Time To Live — is the expiry window on a secure message. Setting it wrong in either direction has real security consequences.

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AES-256 vs AES-128: Does Key Length Actually Matter?

2026-04-07

Security Architecture

AES-256 vs AES-128: Does Key Length Actually Matter?

Both are considered unbreakable by today's standards. So why does mboxly.app specifically choose AES-256 — and when does the difference start to matter?

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5 Situations When Email Is the Wrong Tool for Sensitive Data

2026-03-28

Secure Sharing

5 Situations When Email Is the Wrong Tool for Sensitive Data

Email was designed in 1971 to move text between terminals. It was never built for confidentiality — and these five scenarios make that painfully clear.

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Burn After Reading: How Self-Destruct Messages Actually Work

2026-03-20

Secure Sharing

Burn After Reading: How Self-Destruct Messages Actually Work

A message that deletes itself after being read sounds like a spy film trope. Here's the technical reality — and why it's more reliable than you might think.

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The # in the URL That Keeps Your Key Secret

2026-03-12

Zero-Knowledge

The # in the URL That Keeps Your Key Secret

The tiny hash symbol in a secure link is not a coincidence — it's the technical reason why even we can't intercept your decryption key.

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