Just as it is important to make sure your computer is safe from viruses, it is also important to keep your devices locked to protect them further.

For example, on your phone you have a screen lock which can either be a PIN of 4+ digits, a pattern, password, a fingerprint, or Face ID.

Where this can be found in your phone depends on the model of the phone, however it will typically be in the ‘privacy’ or ‘security’ section within Settings.