The Signal Settings to Fix Once You've Moved

The Signal Settings to Fix Once You've Moved

You've made the move to Signal. The app is installed, your number is verified, and a few chats have started. Now spend five minutes turning on the settings that actually protect you. Then forget about them. Which settings matter most? There are five, and each takes about a minute. Disappearing messages auto-delete chats after a โ€ฆ

How to Move Your Friends to a New Chat App

How to Move Your Friends to a New Chat App

You've switched apps. The new one is very quiet, and every conversation you actually care about is still happening on the old one. The truth nobody tells you about switching apps is that the app is the easy part. Your people are the hard part. Why does nobody move when I ask? Because a chat โ€ฆ

Signal Takes One OTP and a PIN to Start

Signal Takes One OTP and a PIN to Start

You've seen the problem with how much a chat app can know about you. Here's the fix, and it's easier than you'd think. How long does this actually take? About five minutes, and most of that is waiting for one OTP to arrive. Download Signal, which is free. Verify your number with one OTP. Set โ€ฆ

What a Chat App Can Be Forced to Hand Over

What a Chat App Can Be Forced to Hand Over

Same court order, sent to two apps. The answers couldn't be more different. One comes back as a thick file, and the other as two dates. What can most apps be made to hand over? Quite a lot more than the messages themselves. Who you talked to. When, and how often. Your contacts. The groups โ€ฆ

Why Deleting a Message Does Not Delete It

Why Deleting a Message Does Not Delete It

You hit delete on a message and felt a little better. That relief is mostly imaginary. The message left your screen, but it did not leave the world. What survives after I press delete? A backup still has a copy. Your chats back up to Google Drive or iCloud on a schedule. That copy was โ€ฆ

Encryption Hides What You Say, Not Who You Talk To

Encryption Hides What You Say, Not Who You Talk To

"It's encrypted, so I'm totally safe." Most of us have said some version of that line and relaxed. It is half true, and the missing half is the part worth understanding. What does encryption actually protect? Encryption scrambles your message so only the person at the other end can read it. End-to-end encryption means the โ€ฆ

That Friendly Find Friends Button Is Not About Friends

That Friendly Find Friends Button Is Not About Friends

You install a new app and the very first screen is warm and helpful. "Find Friends" it says, with a big button underneath: Allow Contacts. It feels like a small favour to yourself, so you tap it. What did I just hand over? Every name and number stored in your phone. Your relatives, your doctor, โ€ฆ

Your Address Book Belongs to Other People Too

Your Address Book Belongs to Other People Too

We think of privacy as a personal choice. My phone, my data, my decision. Then we tap "allow access to contacts". And quietly make that decision for everybody else in it. Whose data is in my address book? Not yours. Your mother's number is her number, not your property. Your accountant gave you his details โ€ฆ

3.5 Billion Accounts, and What Actually Leaked

3.5 Billion Accounts, and What Actually Leaked

Most of us have received that forward warning about a WhatsApp hack. Usually it is nonsense. This one was not, and the number is genuinely hard to take in. What was the number again? Roughly 3.5 billion accounts. That is not a typo, and it is not a subset. It is close to every WhatsApp โ€ฆ

Four Messages Can Tell Your Whole Story

Four Messages Can Tell Your Whole Story

"It's just who I messaged, not what I said." Almost everybody says this, and it sounds reasonable. Let me show you why it falls apart. What can four messages reveal? Picture two ordinary days on somebody's phone. Message one goes to a divorce lawyer. Message two goes to an apartment listing site. Message three goes โ€ฆ