New security features arrive on WhatsApp

WhatsApp has rolled out a set of security updates designed to curb online fraud and make accounts harder to steal, according to Deccan Herald and Techjaja. The features include expanded passkey support, a stronger two-step verification system, and new caller context alerts for unknown numbers.

The updates come as WhatsApp serves more than three billion people, as reported by Techjaja, and Deccan Herald puts the active user base at 3.3 billion. The rollout was scheduled for August 25, according to Deccan Herald.

Passkeys: one billion users and multi-device support

Passkeys have reached a notable milestone: more than one billion people have set one up on WhatsApp, as reported by both Deccan Herald and Techjaja. A passkey lets users log into WhatsApp using the same fingerprint, Face ID, or screen lock used to unlock their phone, offering a faster and more secure alternative to traditional passwords.

Techjaja reports that users can now add more than one passkey to the same account, a change that helps people who switch between devices, such as an Android phone and an iPhone. Each device can hold its own passkey. To set up or add a passkey, users open WhatsApp Settings, tap Account, then Passkeys, according to Techjaja.

Beyond login, WhatsApp has extended passkey technology to protect end-to-end encrypted chat backups, Techjaja reports. End-to-end encryption has been the default on WhatsApp for years, but the company continues to layer on protections against account hijacking.

Two-step verification upgraded to a full password

WhatsApp has upgraded its two-step verification from a six-digit PIN to a full alphanumeric password that can include letters, numbers, and special characters, as reported by both sources. This makes it harder for hackers to gain unauthorised access, according to Deccan Herald.

The feature remains optional, according to Techjaja. The company has not said whether it will eventually require two-step verification.

Caller context for unknown numbers on Android

WhatsApp now shows Android users additional context for calls from unknown numbers, including the country and any shared groups, according to both Deccan Herald and Techjaja. This is intended to help users avoid scams by providing more information before they pick up.

Techjaja notes that iOS users do not have this caller context feature yet.

Broader context and user advice

Techjaja reports that earlier this year WhatsApp introduced stricter privacy modes for high-risk users and local machine-learning alerts that flag potential scam chats. These additions are part of a broader effort to address evolving threats like account takeovers, SIM-swap attacks, and social-engineering scams.

The company also advises users not to share verification codes and to be wary of unexpected calls claiming to be from banks or delivery services, according to Techjaja.