Unauthorized Contact from a WhatsApp Business Account

I got a WhatsApp message from a foreign number starting with +62 which appeared to be a business account. The message was straightforward: "Hello." I immediately blocked the number and reported it using WhatsApp's complaint button. This incident has filled me with dread and dissatisfaction. It makes me nervous to think about someone gaining access to my account information and possibly misusing my phone number. I want to make it clear that I accept no responsibility for any unauthorized activity, such as disseminating my phone number or incurring debts in my name. WhatsApp is solely responsible for the security of the platform.