WhatsApp issued a statement which suggests that the claims have been 'overstated' and 'have not painted an accurate picture'.
TechCrunch has posted WhatsApp's full statement which said,
"We are aware of the reports regarding a "security flaw". Unfortunately, these reports have not painted an accurate picture and are overstated. Under normal circumstances the data on a microSD card is not exposed. However, if a device owner downloads malware or a virus, their phone will be at risk. As always, we recommend WhatsApp users apply all software updates to ensure they have the latest security fixes and we strongly encourage users to only download trusted software from reputable companies. The current version of WhatsApp in Google Play was updated to further protect our users against malicious apps."
It's worth pointing out that WhatsApp is claiming that its recently released Android app update can counter the malicious apps, but does not mention any features to protect chat history.
However, the company clearly notes that if an Android device owner downloads a malware or a virus, the device would be at risk.
Earlier on Thursday, Bas Bosschert in a blog post detailed how WhatsApp for Android had security flaws, noting the popular messaging service backs up its messages on the SD cards of devices - which could put the entire message database at risk.
Bosschert had also claimed that the latest WhatsApp update for Android, that added the option to hide 'last seen' status and more, has not fixed the security flaw in the app.