What is the most important step to protect my personal data?

Consolidate. Most exposure comes from the same handful of facts being copied into dozens of accounts, each with its own weak password. Keeping your identity in one encrypted place only you can read — and using a unique password or passkey per account — removes more risk than any single setting.

Is my data safe if a company encrypts it?

Not necessarily. Most services encrypt your data but hold the key themselves, so they (and anyone who breaches or subpoenas them) can read it. Zero-knowledge encryption means only you hold the key — a meaningful difference covered in the guide below.

Do I still need strong passwords if I use passkeys?

For now, yes. Passkeys are more secure and worth adopting, but support is uneven, so you will have a mix of passkeys and passwords for a while. Either way, the rule holds: unique per account, never reused.

How to protect your personal data online

The whole map

Protecting your data, in eight pieces

"Protect your personal data" is advice everyone gives and no one explains. It isn't one thing to lock down — it's your name, IDs, logins, and records, copied into a hundred accounts you've forgotten you have. So this isn't one action; it's a handful of ideas, then closing the gaps in order — read the pieces that matter to you.

Privacy vs. security

Two different things — and you need both. Start here.

Zero-knowledge encryption

The one idea that decides whether "encrypted" actually protects you.

Can a company read it?

How to tell whether the service holding your data can open it.

Too many passwords

The average person has ~120. Why that's the real risk.

Passwords in your browser

Convenient — but is it safe? What it does and doesn't protect.

Passkeys

The upgrade to passwords — what they fix, and what they don't.

What forms take

The data you hand over every time you sign up — and how to give less.

After a breach

When a service you use is breached, do these things in order.

Start here

The ideas that do most of the work

Skip the settings for a minute — get these three and you'll read every app differently.

Privacy isn't security

Security keeps intruders out; privacy decides who's allowed in at all — and a service can have one without the other. See the difference →

Who holds the key?

The question isn't whether a company encrypts your data — it's whether it can still read it. Zero-knowledge encryption →

Can a company read it?

Three quick tests tell you whether the service holding your data can actually open it. How to tell →

Lock the doors

Fewer keys. Better locks.

The average person juggles ~120 passwords — too many to keep unique from memory, so people reuse one and a single breach spreads. Three moves close it.

→A unique password per account.
→Kept safer than the browser. Why →
→Passkeys where they're offered. More →

Give away less

The safest data is data you never shared.

Every signup asks for the same handful of facts about you. The fewer copies scattered across services you'll never think about again, the less there is to lose when one of them is breached — the quiet case for keeping your identity in one place.

94%

of what you type into signup forms, you've already handed to another company — the same 11 facts repeated, over and over. What you give away →

When it goes wrong

A breach isn't an if. Have an order.

When a service you use is compromised, calm and in sequence beats panic.

Change the reused password

Everywhere you used it — that's the path the damage takes.

Expect the phishing

Leaked details make the follow-on scams look real. Slow down.

Know the shared exposure

Which accounts share that password or data? The full order →

Fewer copies. One you control.

Nearly every piece above points the same way — the less your personal data is scattered, and the more it lives in one place only you can read, the less there is to protect. That's Simply Once: one encrypted identity, filled into forms so you stop leaving copies everywhere.

You don't have to do all of this today — pick the piece that worries you most, close that gap, and come back for the next one.