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Securing your devices: phone, computer, Wi-Fi and backups
Most security problems are very concrete: the phone, the computer, the Wi-Fi. Here you secure your devices step by step.
Where to start
Most security problems are very concrete: the phone, the computer, the Wi-Fi. The good news is that a secure device is mostly a matter of a few basic settings, not expensive special software.
If you do not know where to begin, work in this order: secure the device you use most first – usually the phone. Then the computer, then the Wi-Fi and router that every device goes online through. And last, the thing that saves you when something goes wrong anyway: an automatic backup.
Phone and computer
Your home network
- Secure your Wi-Fi and your router · Using public Wi-Fi safely
- Securing smart home devices
Protection and planning ahead
- Set up backups – your insurance against loss, theft and ransomware.
- Do you need antivirus? – an honest answer, per device.
- Wiping a device before you sell it – removing your data for good before it changes hands.
- If it has already happened: Phone hacked – first aid
Device security is not a one-time project. Turn on automatic updates everywhere, and once a month check briefly that backups are running and that no unfamiliar devices are signed in to your accounts. The short version is in the 15-minute security check .
All articles
Selling a phone or computer: erasing your data properly
Before your old device changes hands, your data has to be gone for good. Deleting files is not enough – here is how to do it properly.
Secure your Mac: the macOS settings that matter
A Mac has a good security reputation – but it is not fully locked down out of the box. A few settings close the most important gaps, with no extra software.
Securing smart home devices: cameras, speakers and the rest
Smart cameras, speakers and doorbells are small computers on your network – and often the weakest link. A few steps make your smart home safe.
Using public Wi-Fi safely: how to stay protected
Free Wi-Fi in a café, hotel or airport is convenient – but not always safe. A few rules let you use open networks without putting your accounts at risk.
Android security settings – step by step
Setting up Android securely: the settings that give you the most protection day to day – screen lock, updates, Play Protect and device finding.
iPhone security settings – step by step
The security settings that matter most on an iPhone – clearly explained and quickly done. Face ID, passcode, updates, tracking protection and Find My.
Set up backups: keeping photos and files safe
A backup is your insurance against loss, hardware failure and ransomware. Set it up once and you barely have to think about it again.
Secure your router: the steps that matter
The router is the door between the internet and your home network. Here is how to set it up safely – admin access, firmware, remote access and the rest.
Secure your home Wi-Fi: locking down your network
Your home network is the door to every device you own. A few settings make your Wi-Fi far more secure – explained in plain language.
Do you need antivirus software, or is it unnecessary?
Do you still need antivirus software? The honest answer: it depends on the device. Here is the situation, without the scare tactics.
Secure your phone: the settings that matter most
A handful of settings make your phone far safer – with no technical stress. These steps protect you against the most common risks.
Secure your Windows PC: updates, accounts and protection
Lock down a Windows PC reliably with the tools it already has – updates, Defender, accounts and backups. No expensive extra software needed.