What makes you think hacking? Many organisations (legit or not) will try call you for any number of reasons but if you don't answer or don't say anything if you do answer what is being hacked?
@Hagar-58 nothing much you can do if it is a different number each time, either, do not answer, buy an answering machine or hang up if you think scammers are calling. Now they are using software that are generating numbers to call and those numbers are either Australian numbers or mobile numbers so you never know who is calling. Just hang up on them and don't call back unknown numbers.
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