WhatsApp introduces Chat Lock to protect sensitive messages
WhatsApp has long been one of the more secure messaging apps with mass appeal, largely thanks to end-to-end encryption. This has been boosted further by features such as disappearing messages, and now Meta has added Chat Lock.
The company says that the feature "lets you protect your most intimate conversations behind one more layer of security"; what this means in practice is that message can be password or fingerprint protected. But there is more to Chat Lock than this.