I’ve always found that Google Chat is pretty secure for most everyday use—it uses encryption for messages in transit and integrates with Google’s security systems. However, it’s not end-to-end encrypted like Signal or WhatsApp, so if you want maximum privacy for sensitive info, those might be better. For basic business or personal chats, Google Chat is usually safe enough, especially if you’re already using other Google services. Just remember, security is only as strong as your account protection—enable two-factor authentication for extra safety.