Can Someone Hack Your Phone Through a Phone Call?

Can Answering a Call Hack Your Phone

In the vast majority of cases, simply answering a phone call cannot hack your phone. Standard voice calls don't transfer executable code. However, extremely rare and sophisticated exploits have been documented — most notably the Pegasus spyware developed by NSO Group, which could infect phones through zero-click attacks delivered via calls.

These zero-click exploits target specific vulnerabilities in phone operating systems and are typically used by nation-states against high-value targets (journalists, activists, politicians) — not in mass consumer scam operations.

Real Phone Hacking Methods

Actual phone compromise typically happens through: malicious apps (downloading from unofficial sources), phishing links (clicking links in texts or emails that install malware), SIM swapping (social engineering your carrier to transfer your number), public Wi-Fi attacks (intercepting data on unsecured networks), and physical access to an unlocked device.

Each of these requires specific conditions and user actions — they're not accomplished simply by receiving a phone call.

Zero-Click Exploits Explained

Zero-click exploits are sophisticated attacks that require no user interaction. The attacker sends a specially crafted message (via iMessage, WhatsApp, or even a phone call) that exploits a vulnerability in the receiving software. Apple and Google patch these vulnerabilities regularly — which is why keeping your phone updated is critical.

Known zero-click exploits: NSO Group's Pegasus (used against 50,000+ targets globally), FORCEDENTRY (patched by Apple in 2021), and BlastDoor bypass exploits. These cost millions of dollars to develop and are not used in common phone scams.

What You Should Actually Worry About

The realistic threats from phone scams are information theft (scammers extracting personal data during conversation), financial fraud (convincing you to transfer money or share account details), and social engineering (using information from the call to compromise other accounts).

You should also worry about premium-rate charges (calling back scam numbers), SIM swapping (if scammers gather enough personal data), and remote access scams (where you're tricked into installing screen-sharing software).

How to Protect Your Device

Keep your phone's operating system updated — patches fix the vulnerabilities that advanced exploits target. Don't install apps from unofficial sources. Enable Lockdown Mode (iPhone) if you believe you're a high-risk target. Use a strong lock screen with biometrics.

Review app permissions regularly, use a VPN on public Wi-Fi, enable Find My Device for remote wiping capability, and consider a mobile security app (Lookout, Norton Mobile Security) for additional malware scanning.