Blog
Guides on secure sharing, encryption, and protecting sensitive data.
Practical guides on password security, zero-knowledge encryption, and safe secret sharing for developers and teams. Learn why common methods like Slack DMs and email are insecure, how to share API keys and credentials safely, and how the encryption behind 1time.io actually works.
Best Firefox Send Alternative — Free & Self-Hostable
Firefox Send was one of the best ways to share files securely. Mozilla shut it down in 2020. Here is what happened, what the alternatives look like, and why we built a replacement.
SecurityNo RSA, No ECC, No Problem: Why 1time.io Is Already Quantum-Safe
Quantum computers will break RSA and elliptic-curve cryptography. Most password sharing tools depend on both. 1time.io uses neither — making it a quantum-safe one-time link by design, not by accident.
DevOpsStop Sending Passwords Over Slack: Here's What I Built Instead
I caught plaintext credentials sitting in our Slack history for months. So I built an open-source tool that encrypts secrets in the browser and destroys them after one read.
DevOpsHow to Share Secrets from the Terminal with End-to-End Encryption
You are in a terminal. You need to send a database password to a colleague. Opening a browser feels wrong. Pasting it into Slack feels worse. Here is a better way.
How It WorksWhat Is HKDF and Why We Use It for End-to-End Encryption
We recently upgraded 1time.io from simple SHA-256 hashing to HKDF-based key derivation. Here is what that means in plain language, why it matters, and how it makes your secrets safer.
SecurityHow to Create a Strong Password for Your Crypto Wallet
Your crypto wallet password is the last line of defense between your assets and an attacker. A weak one can be cracked in hours. Here is how to make one that cannot.
ComparisonBitwarden Send Alternative — Free, No Account Required
Bitwarden is an excellent password manager. But when you just need to send a secret to someone quickly, Bitwarden Send adds friction. Here is how the two compare for one-time secret sharing.
DevOpsDatabase Password Security Best Practices
Your database password is the front door to your application data. Here is how to generate, store, rotate, and share database credentials without putting your data at risk.
GuideHow to Set Up a Secure Home WiFi Network
Your WiFi password is the front door to your home network. Every device — laptop, phone, smart TV, baby monitor — connects through it. Here is how to lock it down properly.
SecurityHow to Create a Strong Email Password
Your email account is the skeleton key to your entire digital life. Anyone who gets in can reset every other password you have. Here is how to protect it.
GuideHow to Share Your WiFi Password Securely
Whether you are hosting guests, running an Airbnb, or onboarding office visitors, sharing WiFi passwords the wrong way can compromise your entire network.
ComparisonPassword Pusher Alternative — Zero-Knowledge & Free
Password Pusher (pwpush.com) is a popular open-source tool for sharing passwords through expiring links. Here is how it compares to 1time.io in terms of encryption, privacy, and everyday usability.
TeamsTeam Password Sharing Without a Password Manager
Not every team has a password manager. Not every situation justifies one. Here is how to share credentials securely with your team using tools that require zero setup.
GuideHow to Share API Keys Securely with Your Team
Every developer has done it: pasted an API key into Slack, a GitHub issue, or an email. Here is why that is a serious risk and how to share credentials safely.
Comparison1time.io vs Privnote — Why Encryption Matters
Privnote is one of the oldest self-destructing message tools. But deleting a message after reading is only half the equation. If the server can read your message in the first place, is it really private?
SecurityIs Slack Safe for Sharing Passwords? (No, and Here Is Why)
You probably share passwords over Slack DMs. So does everyone else. Here is why that is a serious security risk and what to do instead.
GuideHow to Send Passwords Securely Over Email
Email is the most common way people share passwords. It is also one of the worst. Here is why, and what to do instead.
Comparison1time.io vs OneTimeSecret — A Transparent Comparison
OneTimeSecret is the most well-known one-time secret sharing tool. We built 1time.io to address what we see as gaps in its approach. Here is an honest comparison — where we are better, where we are similar, and where OneTimeSecret has the edge.
How It WorksSelf-Destructing Links: How They Work + Free Generator
A self-destructing link reveals a secret once, then deletes itself forever. Generate one below — or read on to learn exactly how self-destruct links work under the hood.
GuideHow to Share Passwords Securely with Your Team
Slack DMs, emails, and spreadsheets are the most common ways teams share passwords. They are also the least secure. Here is what to do instead.