How silent call becomes latest front in cybersecurity threats

Rising silent calls have raised fresh cybersecurity fears as part of the evolving phone-based attacks.

A growing wave of silent calls, which are phone calls where the recipient answers only to hear dead air or no response, has become the latest front in global cybersecurity threats.

Experts warn that it may be linked to sophisticated fraud schemes and network probing tactics.

These calls, which are often dismissed as minor annoyances, are increasingly being used as part of broader cyberattack strategies, including identity theft, voice phishing, and automated fraud campaigns.

Silent calls are frequently associated with automated dialling systems, commonly known as robocalls, which use software to dial large volumes of numbers simultaneously.

Robocall systems can generate millions of calls, sometimes leaving dead air when no agent is available or when the system is testing active phone lines.

Silent calls are not always random, as they can be data-gathering mechanisms which indicate that once a number is verified as active, it may be targeted for more sophisticated attacks.

A key concern is the connection between silent calls and more advanced scams such as Caller ID spoofing, where attackers disguise their phone number to appear as a trusted source.

Once a number is identified as active, cybercriminals may follow up with targeted attacks, including Voice phishing schemes.

These scams often use pre-recorded messages or impersonation tactics to trick victims into revealing sensitive information such as bank details or passwords.

What users should watch out for?

Users should treat silent calls as potential warning signs rather than harmless glitches.

Avoid interactions with suspicious automated prompts, use call-blocking or spam-filtering tools and be cautious of follow-up calls requesting sensitive information.