Ensure your phone, tablet or laptop has a reputable anti-virus installed. Keep software patched and up-to-date with the latest release version, to ensure that any identified security holes have been closed. Set-up two-factor or multi-factor authentication wherever possible. Online systems such as banks, Google Mail and Facebook offer this option for transactions or when logging into accounts. This way, a malicious hacker can’t log in without also having access to your phone or SMS inbox, even if they know your username and its associated password. Find more information about securing mobiles and tablets.