Idk about its security, but proxies' security is much low that owner of the proxy (Domain of the proxy) can see your messages sending while using his proxy, and

Idk about its security, but proxies' security is much low that owner of the proxy (Domain of the proxy) can see your messages sending while using his proxy, and it backups your messages. For me, I usually use telegram, it's better and more comfortable than whatsapp. I dont judge about its general security, but the proxies security is shit as possible. btw I live in Iran and I have only two ways to connect to telegram, VPNs or Proxies. But with these conditions, I rather using telegram instead of shitty whatsapp