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Block strangers' invites in Google, Apple and Outlook calendars, clear out existing spam, and learn the tells of a scam invite.

Check recruiters, refuse rogue meeting apps, open test projects safely and lock down VS Code and npm so fake interviews can't steal your data.

Refuse cookie banners properly, undo past 'Accept all' taps, and block the same ad tracking in your browser and phone settings.

Turn on iMessage Contact Key Verification, compare codes with friends and remove unknown devices from your Apple Account.

Unlink your phone number from Instagram, Facebook and TikTok, delete uploaded contacts and switch off contact syncing everywhere.

Cut every link to a car you sell or trade in: app account, car screen, dealer records, phone and garage buttons.

Turn on your phone's repair or maintenance mode, or prepare an iPhone, so a repair technician can't see your photos, chats or accounts.

Check an Airbnb or hotel room for hidden cameras in about 15 minutes using your phone's torch, front camera, Wi-Fi and Bluetooth.

Set up a separate email alias for every site, move your accounts over, and shut down the one that leaks without touching the rest.

Find forgotten app accounts, cancel leftover subscriptions, save your data and get the account and its data deleted for real.

Sign Netflix, YouTube, Prime Video, HBO Max and Disney+ out of a hotel or rental TV remotely, and check nobody kept watching.

Switch on BitLocker, Device encryption or FileVault, store the recovery key safely and confirm a thief can't read your laptop's drive.

Map the plate cameras near you, check your plate in public Flock logs, request your city's audit logs, and limit and encrypt Ring video.

Listen to what Alexa, Google Nest or HomePod stored about you, delete it, and set it to auto-delete from now on.

Block, test and switch off your car key's signal and lock down phone keys so relay thieves can't unlock and drive off your keyless car.

Replace your router's factory admin login, switch on automatic firmware updates, turn off remote access and check nothing was changed.

Turn on end-to-end encryption for your Ring doorbell, stop it filming the street, and switch off the features that scan or share clips.

Swap the real answers to your security questions for random words saved in your password manager, and hide the facts that give them away.

Turn off training, memory and history in ChatGPT, Claude, Gemini and Copilot, and clean up what you've already shared.

Switch off driving-data sharing in your car, app and phone, then pull and dispute the broker files insurers may use.

Pass online age checks without uploading your ID: pick safer methods, share only "over 18" from your phone, and delete old copies.

Build three copies of your files on two kinds of storage, with one encrypted drive kept offline, so deletions and ransomware can't wipe you out.

Remove risky browser extensions and limit what the rest can read in Chrome, Edge (desktop and Android), Firefox, Safari and Samsung Internet.

Spot and remove badges, screens, addresses and location from photos on your phone or computer before posting, and clean up the ones already online.

Install Tails on a USB stick, boot any PC from it, connect through Tor and add encrypted storage, step by step.

Make a true one-time pad with ordinary dice, share it in person, and encrypt and decrypt private messages by hand.

Set your iPhone or Android so public USB ports only charge it, and use a data blocker to cut the data wires completely.

Move coins off an exchange into a wallet you control, then check, store and protect your seed phrase so it is much harder to lose or have stolen.

Delete or block your phone's advertising ID and turn off built-in ad personalisation on iPhone, Android and Samsung.

Find the data broker and people-search sites that list your address and phone number, opt out of each, and hide what's left from Google.