When you're alerted to a security update for your operating system or one of your apps, don't ignore it ' install it as soon as possible. These updates aren't just about adding new features. They're also about fixing weaknesses that cybercriminals use to gain access to your device.
Regularly update the software on your internet connected devices, including computers, smartphones and tablets to reduce the risk of infection from malicious software. Install anti-virus software on all your devices and complete regular scans to help you detect and remove malware (viruses) from your device.