WhatsApp Introduces Strict Security Mode to Combat Scams and Social Engineering

WhatsApp has begun rolling out a new security feature designed to protect users from scams, impersonation attempts, and social engineering attacks by automatically blocking content from unknown contacts.

The new "Strict Account Settings" feature, introduced by Meta, represents a significant shift in how messaging platforms approach user security. When enabled, it automatically blocks media and attachments from unknown senders, silences calls from unknown numbers, disables link previews, and limits messages from contacts who are not saved.

George Foley, security spokesperson for ESET Ireland, said the move addresses how most cyberattacks now begin:

"Cyberattacks today rarely start with malware. They start with a message. A missed call, a link, a file, or a conversation designed to lower your guard. By blocking unknown contacts and tightening access by default, WhatsApp is addressing the reality of how people are being targeted."

The change highlights the trade-off between convenience and security in digital communications. Foley noted that instant reachability has become normal but is also one of the biggest weaknesses in digital lives.

"These new settings will not suit everyone, but they are a clear reminder that convenience often comes at a security cost. Platforms are finally starting to step in earlier, before damage is done, rather than after," he said.

ESET Ireland said features like this are particularly important for journalists, public figures, and anyone whose phone number is widely shared, but they also offer protection for everyday users who are increasingly exposed to scams through messaging apps.

The company advises users to review their privacy and security settings across all messaging platforms, be cautious of unexpected messages or calls, and avoid opening links or attachments from unknown senders, even when they appear harmless.

For more information, visit www.eset.com/ie.