Meta announced a robust security update for WhatsApp in Brazil, focused on countering the growing sophistication of cyberattacks. The new feature introduces a set of measures specifically designed to protect users considered more vulnerable to digital espionage, such as activists, journalists, and public figures.
The information was disclosed by Meta itself, which detailed that the new security package changes how the app processes received files, creating a more restrictive and preventive environment against digital threats. This initiative is part of a global strategy to reduce risks associated with sending malicious content via messaging apps.
The main highlight of the update is the implementation of a feature called Strict Account Settings. When manually activated by the user, this function prevents photos, videos, and documents sent by unknown numbers from being automatically downloaded to the device.
This measure aims to neutralize the spread of malware that disguises itself as harmless files, a common practice in targeted attacks. With the new system, no suspicious content is saved to the device without a conscious action from the user, significantly reducing the chances of infection by malicious software.
Another important advancement lies in the technological foundation of the tool. WhatsApp has begun using the Rust programming language for media processing. Recognized in the tech sector for its ability to prevent memory errors—flaws frequently exploited by hackers—the adoption of Rust makes the app’s infrastructure more resistant to critical intrusions and exploits.
Additionally, the messaging app now features a background verification system capable of identifying files known as “chameleons,” which simulate being videos or images but hide malicious code. This analysis occurs even before the attachment is executed and works independently of the device’s operating system, whether Android or iOS, even if not fully updated. According to Meta, combining these layers of protection enhances WhatsApp’s ability to detect threats before they cause damage, bolstering the security of users’ personal data and communications.
The update is being rolled out gradually to the user base in Brazil. Those who already have access to the feature can enable it by navigating to the Settings menu, then the Privacy tab, and subsequently selecting Advanced Settings, where the additional protections can be activated.
The company hopes the new security mode will help make WhatsApp a safer environment amid the rise in digital scams, cyber espionage, and targeted attacks, which have become increasingly frequent and sophisticated.
Source: brasil247.com