The invisible threat inside your pocket

Imagine you receive a message from a friend, be it an image or a video. That image or video may contain a link that downloads an application automatically onto your phone. Everything seems normal; however, what you may not realise is that something could be quietly monitoring your activities.
From tracking everything you do and seeing whom you speak with, to collecting your personal information and sending it to someone else—that is the invisible threat in your pocket, and it is the subject of my article this week. Welcome to the world of mobile phone spyware, where the biggest threat may not be a broken screen or a stolen device, but something you cannot see.
Spyware is malicious software designed to secretly monitor a device and collect information without the user's knowledge. Depending on its capabilities, it may access messages, browsing activities, photographs, location data, microphone recordings, or login credentials. Cybercriminals use it to steal money, whilst others use it to monitor a person's private life.
So how does spyware find its way onto our smartphones? Simply via a suspicious link received through a messaging application, such as WhatsApp or SMS, by downloading an application from an untrusted website, or by installing software that requests permissions it does not need to have.
Once installed, spyware may operate quietly in the background, collecting information and transmitting it over the internet. More sophisticated attacks can exploit software vulnerabilities without even requiring the victim to install an application.
The consequences extend far beyond a slower phone. Stolen banking credentials can lead to financial losses, private photographs can be exposed, confidential business information can be compromised, and personal conversations can become tools for blackmail or manipulation. This is alarming, especially given that you don’t know about the invisible threat you carry virtually everywhere.
So how does one know if their phone has spyware? There is no single sign that confirms an infection. However, unusual battery drain, overheating when the phone is idle, unexplained increases in mobile data usage, unfamiliar applications, unexpected permission changes, or strange activity happening on your mobile phone are all signs to watch out for.
One thing to note, though, is that the symptoms I have shared may simply be due to ageing batteries, outdated software (operating system and/or apps), or too many applications running in the background. So, do not panic. What should you do instead?
1.Start by reviewing installed applications and removing anything unfamiliar or unwanted. Check app permissions (microphone, camera, location, contacts, etc.) and see whether they really require that access.
2. If you still face problems, back up important files and consider a factory reset, then set up the device as new and reinstall only trusted applications.
3.Change important passwords from a separate, trusted device and enable two-factor authentication.
4.Finally, prevention remains your strongest defence. Download applications only from official stores, scrutinise permissions, avoid suspicious links, and never share verification codes.
We have become so dependent on our smartphones that we rarely stop to consider how much information we carry in our pockets—from banking applications, private conversations, family photographs, and business documents, to passwords and location history.
Technology has made our lives easier, but convenience should never come at the expense of privacy. We lock our homes, protect our cars, and guard our wallets. Perhaps it is time we gave the same attention to the device that knows almost everything about us.
Until we catch up again next week, stay curious, stay connected, and, above all, stay cyber-safe to avoid allowing a threat inside your pocket.