WhatsApp is introducing a new feature called Strict Account Settings, aimed at enhancing user privacy with a one-click option. This feature simplifies the process of managing various security settings, consolidating them under a single toggle. Available in the Settings > Privacy > Advanced menu on both iOS and Android, it restricts functionalities like last seen indicators, profile visibility, and group additions. Users will also benefit from disabled link previews, blocked messages from unknown accounts, mandatory two-step verification, and notifications for security code changes. Once enabled, the individual features cannot be adjusted independently. The push for this new feature comes amid concerns about security for high-profile individuals who use WhatsApp. Meta emphasizes that the enhancements are available to all users, not just those at higher risk. The company has faced scrutiny lately, including a lawsuit claiming that WhatsApp's encryption is misleading. Meta categorically denies these allegations and maintains that end-to-end encryption has been a core feature for a decade, implemented through the Signal protocol. In addition to the privacy updates, Meta has replaced an older C++ library used for media processing and security with a new Rust-based library. This transition is intended to improve safety and ease of maintenance, reflecting a broader industry shift toward Rust for its security benefits. Meta plans to increase its use of Rust further in the future, underscoring its commitment to secure software development.