Yes, in this digital world where smart phones have turned more of a necessity than just a commodity, malware can spread from these devices at an exponential note. However, security experts feel that the risks are generally lower, when compared to computers, but they say that the threat truly exists. So, those uninitiated, here are some ways malware can spread from smartphones:
1. Malicious Apps:
• Third-party app stores: Downloading apps from unofficial or third-party stores like forums and torrents, can increase the risk of malware infection.
• Permissions abuse: Some apps ask for unnecessary permissions (access to contacts, camera, messages, etc.), which can be exploited for malicious purposes. However, as companies like Google and Apple are tightening the noose around the developers with strict regulations, this threat seems to be coming down, on a gradual note.
2. Phishing Links & Messages:
• Phishing: Hackers can use SMS, email, or social media to send links that, when clicked, install malware or direct you to fake login pages to steal personal data.
• Text message scams: Fake messages claiming to be from legitimate companies like Mobile Phone service providers or banks can trick users into downloading malicious apps or malware.
3. Bluetooth and Wi-Fi Networks:
• Bluetooth vulnerabilities: If your Bluetooth is left on and is discoverable, hackers could exploit weaknesses in the protocol to send malware.
• Unsecured Wi-Fi networks: Public Wi-Fi networks like those in airports or other transit stations can be a hotspot for hackers to inject malware, if your device isn’t properly secured- mainly via USB charging ports.
4. Infected Files and Attachments:
• Malicious files: Malware can be spread through infected attachments (like documents or APK files) shared via email, SMS, or other apps. There is a high probability that even a simple WhatsApp GOOD Morning image file can turn into a malware carrier.
• File-sharing apps: Apps that facilitate file sharing between users (e.g., file managers or cloud storage) can accidentally transmit malware.
5. Social Engineering Attacks:
• Fake updates: Malware can be disguised as an “update” for a popular app, tricking users into installing it.
• Fake antivirus apps: Some malware poses as antivirus software or security apps to gain control over your phone. So, only download applications which have huge download count and have at least 3-4 star ratings.
6. SMS & Call Scams:
• Premium-rate numbers: Malware can be used to dial premium-rate phone numbers or send SMS messages to premium services without your consent.
• Ransomware: In extreme cases, malware could lock your phone and demand payment to regain access, similar to ransomware on PCs.
How to Protect Your Smartphone:
• Stick to official app stores (Google Play Store or Apple App Store).
• Keep software up-to-date: Updates often include security patches.
• Use a strong password or biometric authentication to lock your phone.
• Avoid clicking on suspicious links or downloading files from unknown sources.
• Install antivirus software: While not as essential on iOS, Android devices can benefit from it.
• Use secure Wi-Fi: Avoid connecting to unsecured public Wi-Fi or use a VPN when necessary.
Smartphone malware may not spread as widely as computer viruses, but it’s still a real threat.
Have you ever encountered any suspicious behavior on your device? For instance, watch out for the below symptoms and then look for ways to mitigate risks.
- High data consumption
- Slowly performance of the device
- Unnecessary pop-ups
- Suspicious transactions in bank accounts
- Hourly restart requests
