Why a Security Audit Belongs on Your To-Do List
Most people don't think about device security until something goes wrong — a hacked account, a lost phone, or a suspicious charge. The good news is that the steps that protect you are neither expensive nor technically difficult. They just need to be done.
This checklist is organized by category so you can work through it at your own pace. You don't need any special tools or technical background. If a term is unfamiliar, a plain-language explanation is included right alongside it.
For broader habits that complement this checklist, see our guide on internet safety habits worth building from day one.
Your device's built-in Settings app
Used to configure lock screens, update schedules, app permissions, backup settings, and two-factor authentication.
Password manager app
Generates and securely stores unique passwords for every account, so you never need to reuse one.
Cloud backup service
Automatically backs up photos, contacts, and device data so nothing is permanently lost if your device is damaged or stolen.
External hard drive or USB drive
Provides a local backup copy of your laptop or computer data independent of internet connectivity.
Router admin panel
Accessed via a web browser to check for firmware updates and review connected devices on your home network.
The Security Checklist
Work through each group below. Checkboxes marked must are non-negotiable basics — handle these first. Should items are strongly recommended and take only a few extra minutes. Nice to have items add meaningful protection if you want to go further.
Lock Screen & Access
Software & Updates
Passwords & Accounts
Backups & Data
Privacy & Permissions
Don't Skip the Backup Verification Step
Many people assume their backup is working because they turned it on — but backups can fail silently due to insufficient storage, connectivity issues, or account problems. Take two minutes to open your backup settings and confirm the date of the last successful backup. A backup you've never checked may not be there when you need it.
A Few Things Worth Understanding
Why software updates matter so much: When researchers or hackers discover a flaw in an operating system or app, the software maker releases a fix called a security patch. Until you install it, that flaw remains open. Attackers actively scan for devices running older software because they know the vulnerability is public. Turning on automatic updates removes this risk with almost zero effort on your part.
What a password manager actually does: A password manager is an app that stores all your login credentials in an encrypted vault, protected by one strong master password. Instead of reusing the same password everywhere — which means one breach can unlock many accounts — the manager generates and remembers a unique, complex password for every site. Our beginner's guide to password managers walks through setup step by step.
Permissions and privacy: Every app you install asks for permissions — access to your camera, microphone, location, contacts, and more. Many apps request far more than they need to function. Reviewing permissions periodically (Settings → Apps on Android, or Settings → Privacy on iOS) lets you revoke access that feels unnecessary. If a flashlight app wants your contacts, that's a red flag.
Your Email Account Is the Master Key
Your primary email address is linked to nearly every other account you own — banking, shopping, social media, and more. If someone gains access to it, they can reset passwords for almost everything else. Treat your email account as your most critical account: give it the strongest unique password you have, and always protect it with two-factor authentication.
For more on how websites handle your connection security, see our explanation of what HTTPS actually protects. And if you want your devices to last longer overall, long-term device care habits pairs well with this checklist.
