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Privacy, explained plainly.
No fear-mongering, no jargon walls — just how this stuff actually works, including the limits. The same honesty we apply to our own product.
The fake “verify you’re human” scam
A fake “verify you’re human” box asks you to press a few keys. Doing that can install malware — here is how to recognise the ClickFix trick.
Read the explainerIs your smart TV listening?
What a large investigation found on LG smart TVs, what LG disputes, and the free settings that turn off content tracking and ad targeting.
Read the explainerCan the apps on your phone share your private data?
How everyday apps can share sensitive details with advertisers and analytics firms, what the recent £26M dating-app settlement actually involved, and how to keep private information on your own device.
Read the explainerWhat is Pegasus spyware?
What Pegasus spyware is, why “zero-click” attacks are rare and aimed at specific people, and the free iPhone settings that lower your risk.
Read the explainerWhat is an "infostealer" — and why a strong password may not be enough
Infostealers copy your saved passwords and live login cookies straight off your device, slipping past even two-factor. Here is how they work — and the simple habits that stop them.
Read the explainerYour locked phone isn't as locked as you think
A WhatsApp flaw lets someone holding your locked Android phone open your camera roll through a video call. The 2-minute permission fix, and why a lock screen is not a vault.
Read the explainerCould a new law scan your private messages? The debate over "client-side scanning"
A proposal in Europe would scan your messages on your own phone, before they are encrypted. What "client-side scanning" means, in plain words.
Read the explainerWhat your internet provider can still see
HTTPS hides what you do on a site, not always which site you opened. Here is the last privacy gap — and how Encrypted Client Hello, now on by default in Android 17, closes it.
Read the explainerWhere should you keep your will?
Where to keep the signed original, what to keep digitally, and how to make both easy to find.
Read the explainerDo you still need a bank safe-deposit box?
What needs physical storage, what needs an original paper, and what works better as encrypted information.
Read the explainerHow to lock photos on iPhone (not just hide them)
How the iPhone Hidden album lock works, its limits, and when a separate encrypted vault with its own PIN fits better.
Read the explainerWhy your family needs a code word
A free check for urgent AI voice impersonation calls: choose a private code word and practise the callback rule.
Read the explainerWhere should you keep your seed phrase?
Paper, metal, split copies and memory — the honest trade-offs, plus the digital places a seed phrase should never go.
Read the explainerHas your password leaked? How to check — and what it actually means
How private password checks work, what a match really proves, and the three fixes to make in order.
Read the explainerIs your journal app actually private?
Apple Journal, dedicated apps and ordinary notes — who can read them, how recovery works, and the questions that expose weak privacy.
Read the explainerHow QR codes can be misused
Sticker swaps, hidden redirects and payment tricks — what QR codes can do, and how to use them with more care.
Read the explainerWhat is a zero-knowledge proof?
Prove a fact without revealing the private details behind it. A simple guide to zero-knowledge proofs, where they are used, and how they differ from zero-knowledge encryption.
Read the explainerWhat is end-to-end encryption?
A plain-English guide to end-to-end encryption: how messages stay private between people, what metadata can still reveal, and why backups and devices matter.
Read the explainerHow strong is AES-256 encryption?
What AES-256 means, why brute force is unrealistic, and why your password and device still matter.
Read the explainerWhat is the Secure Enclave?
The protected iPhone system behind keys, Face ID, Apple Pay and encrypted apps.
Read the explainerWill quantum computers break your encryption?
Which encryption quantum computers may threaten, why AES-256 files remain safe, and what is changing online.
Read the explainerWhat is a brute-force attack?
Why long passphrases beat short complex passwords, and how devices slow attackers down.
Read the explainerWhat is a passkey?
Sign in without passwords, avoid phishing, and protect your device account.
Read the explainerWhat is Advanced Data Protection for iCloud?
Apple's optional iCloud privacy upgrade: what it protects, excludes, and requires for recovery.
Read the explainerThe duress password felony: when deleting your data becomes the crime
A border stop, a wiped phone, a felony charge. Why deleting under pressure backfires — and what deniability does instead.
Read the explainerThe Coldcard bug: why a silent randomness failure can’t reach your vaults
Wallets drained after a silent randomness failure. Why that can’t quietly happen to a Sealby vault — and how you can check.
Read the explainerSet up iCloud sync: pair your devices, choose which vaults follow you
Turn on backup, pair your devices, pick which vaults sync. The full setup guide — and why each step exists.
Read the explainerHow to hide photos on an iPhone — every method, honestly compared
Hidden album, locked notes, vault apps — what each method actually protects against, and where each leaks.
Read the explainerHow to hide videos on an iPhone — and the traps photos don’t have
Videos add size, thumbnail and preview traps on top of everything photos have. What works and what leaks.
Read the explainerWhat photo metadata reveals about you
Location, timestamps, device details — what EXIF data rides along with every photo, what strips it, and what it means for privacy.
Read the explainerPhone searches at the border: what travellers should understand
Borders give agents broader device-search powers in many countries. How searches work and how travellers prepare — without drama.
Read the explainerWhat is a duress PIN — and when does it make sense?
A code that looks like a normal unlock but destroys or conceals data instead. How panic codes work, and their trade-offs.
Read the explainerPhoto vault apps: seven red flags before you trust one
Ads, accounts, "PIN recovery" emails, missing encryption details — how to tell a real vault from a PIN screen over a folder.
Read the explainerHow private are your iCloud photos, really?
What syncs by default, what Apple can access, what Advanced Data Protection changes — and what shared devices reveal.
Read the explainerHidden album vs encrypted vault: the difference that matters
Hiding changes display; encryption changes readability. Why that distinction decides what survives real scrutiny.
Read the explainerEncrypted notes on an iPhone: locked Notes vs real encrypted storage
Locked Apple Notes genuinely encrypt — with visible titles, clumsy attachments and sync caveats. When they are enough and when not.
Read the explainerDigital legacy: passing on private files without giving up privacy now
How the right person reaches your files one day, without anyone having access now: recovery phrases, sealed envelopes, and traps.
Read the explainerCan you be forced to unlock your phone?
Passcodes vs biometrics, borders vs ordinary stops, compelled-decryption laws — the landscape in plain English, and how deniability changes it.
Read the explainerWhat is a deniable vault?
Encryption hides what data says; deniability hides that it exists. How plausible-deniability storage works, its history, and its honest limits.
Read the explainerZero-knowledge encryption, explained.
What the most reassuring phrase in privacy really promises, the recovery-path test that exposes pretenders, and what is stronger still.
Read the explainerYour vault is waiting.
Download Sealby and protect what matters. Setup takes under a minute, and there’s no account to create.
iPhone & iPad · iOS 17+ · Free