Smartphone, don't spy!
✔ A checklist for your mobile security

You care about your safety

You think about your threat situation

You share this knowledge with others

You check this list from time to time

You have already taken part in a cryptoparty

You know your most important contacts and logins by heart

Remove the battery from your phone before sensitive meetings

You use the "NO STALK" app

You do without Apple devices

You are not using a dumbphone

You have removed your SIM card number

You have set up a screen lock

Notifications on your lock screen are deactivated

Your smartphones are encrypted

You can switch off your devices quickly

You are using a privacy film

Your SIM card is protected with a PIN

You do without memory cards

Do not use biometric unlocking

You have deactivated the developer features

You only use your own charging cable

Your operating system has verified boot

You have sealed your device

You have noted the unique numbers of your device

You make regular backups

Your backups are encrypted

Your backups are stored decentrally

You practise restoring your backups

You do not store unused appliances in your home

You do not unlock your smartphone on demand

You have overwritten your phone once

Deactivate unused interfaces

Avoid Bluetooth devices such as earbuds if possible

Cameras that are not in use are covered

You use data-saving telephone tariffs

You have objected to the marketing of your transaction data

You have not activated your mobile data connection continuously

You don't take your cell phone to the demo

You don't use apps like "SnoopSnitch"

You use anonymous SIM cards

You use your smartphone exclusively for one SIM card

You often use other SIM cards and a proxy phone

Deactivate your SIM card if you are traveling with a group

You don't give out your phone number

You don't make calls with your anonymous card

You have purchased SIM cards and phones anonymously

You get your phone credit anonymously

You suppress your phone number when you make calls

Deactivate your voicemail

Dial emergency numbers such as 110 and 112 carefully

You have set up a block for third-party providers

You don't give your name immediately when you answer the phone

You are using a free operating system

You are using GrapheneOS on a compatible device

You have freed your phone from bloatware

You have deactivated or deleted your advertising ID

Are your apps and system up to date?

Use a password manager

You only install apps from trustworthy sources

You check access rights carefully

You use alternative app stores

You do without Google Play services and Apple services

You use privacy-friendly apps

You waive root rights

You use secure messengers

Activate two-step verification in your messengers

You use disappearing messages

You do without voice messages

Do not share your Apple ID and deactivate iMessage

You have activated lockdown mode on your iPhone

You restart your phone often

You have reset your device to factory settings

You are not transmitting your screen to a smart TV

You are careful when scanning QR codes

You do not carry your bank card directly next to your smartphone

You are careful with your personal data

Use alternative frontends

You use passkeys

You secure your accounts with two-factor authentication

Your second factor is on a separate device

You are using an ad blocker

You use different pseudonyms and email addresses

You do not use your pseudonyms at the same time

You use Tor or the Tor browser

You use privacy-friendly search engines

You only use encrypted cloud storage

You use VPNs wisely

You delete metadata from your images

You read through data protection declarations

You encrypt your emails

Delete unused accounts

You check whether you are affected by data leaks

You check the authenticity of important messages