That update reminder is easy to dismiss, but it’s one of the simplest ways to keep your devices and information safe.
Quick summary
- Updates often fix security weaknesses that criminals already know how to exploit, not just bugs.
- The Australian Cyber Security Centre recommends turning on automatic updates wherever you can.
- Update your apps and web browser as well as your operating system.
- Restart when prompted; many updates don’t finish until you do.
- Devices that no longer receive security updates become riskier over time, so plan to replace them.
Every phone, computer and app needs updates. Some add new features, but many fix security weaknesses that criminals have discovered and may already be using. Keeping software up to date is one of the easiest and most effective things you can do to stay safe online.
Why updates matter
Software is complicated, and flaws are found all the time. When a company fixes a security flaw, the details often become public, which means unpatched devices become easier targets. Installing updates closes those gaps.
Turn on automatic updates
The Australian Cyber Security Centre (ACSC), part of the Australian Signals Directorate, recommends turning on automatic updates wherever you can. Check:
- Your operating system: in the settings of your phone, tablet or computer, look for “software update” or “system update” and switch on automatic updates.
- Your apps: in your phone’s app store settings, turn on automatic app updates.
- Your web browser: most browsers update automatically but need a restart to finish.
- Other software: office suites, PDF readers and security software usually have their own update settings.
Handy tip
Choose an overnight update time on your phone and computer, and leave devices plugged in. Updates then happen while you sleep instead of interrupting your work.
Restart when asked
Many updates only finish after a restart. If your device has been asking for days, save your work and restart. It takes a few minutes and makes sure the fixes are actually in place.
Don’t forget other devices
- Wi-Fi routers: check the router’s settings page or app for firmware updates, and change the default admin password if you haven’t already.
- Smart TVs, speakers and cameras: check their settings menus for updates.
- Older tablets and spare phones: if they’re still connected to your accounts, they need updates too, or they should be reset and retired.
When a device stops getting updates
Manufacturers eventually stop supporting older devices. After that, newly discovered security flaws won’t be fixed. Check the manufacturer’s support pages for your model, and plan to replace devices that no longer receive security updates, particularly ones you use for banking, email or work.
Make it a habit
Once a month, take five minutes to check that your devices are up to date and restart anything that’s been waiting. Combine it with checking your backups; our guide to backing up your files explains how. And because updates fix apps as well as systems, see our guide to downloading apps safely.
Your questions answered
Can an update break something?
Occasionally an update causes a problem, but the risk of staying unpatched is usually much greater. Back up important files regularly so you can recover if anything goes wrong.
Should I install updates straight away?
For security updates, yes, or as soon as practical. Automatic updates take care of most of this for you.
What about my router and smart TV?
They need updates too. Many install them automatically; for others, check the settings menu or the manufacturer’s website, and change any default passwords.
How do I know if my device still gets updates?
Check the manufacturer’s support information for your model. If it’s no longer supported, it won’t get security fixes, and it’s time to plan a replacement.
This guide is general information, not technical or legal advice. If you’ve lost money or personal information, contact your bank, IDCARE on 1800 595 160, or report it through ReportCyber at cyber.gov.au.