Android users can finally stop using third-party lock apps to secure their personal messages because WhatsApp is finally rolling out the much-awaited Fingerprint lock feature in the app’s latest stable version. The new feature, which has been available for public testing in the beta version of WhatsApp since August this year, will allow Android users to unlock their WhatsApp app with their registered fingerprint in the same way they unlock their phone’s screen lock. WhatsApp made the feature announcement quietly in the form of a blog post on its website. In the short post, the Facebook-owned messaging company isn’t talking about updating the app to a specific build to get the feature, so that must mean the feature is activated remotely from WhatsApp servers. If you aren’t seeing it appear in Settings just yet, you should, in the next few days. As long as you have the latest version of the popular messaging app installed and a fingerprint scanner on your phone, you should see the optio...