Hi, the latest update in WhatsApp security has been carried out in the IOS system as far as I know. Nothing global or serious has been reported about the improvements on Android, unfortunately. There was a data breach last year and I now have fairly serious doubts about the security of the messenger. A colleague of mine had a similar situation and he got out of it by fm whatsapp apk download and now it not only has a more secure messenger, but it is also more customizable, which previously could not be achieved by standard means.