In this case, it is possible that the contact information has been leaked. At present, I personally think that the solution is to set up a blacklist of strange calls on the mobile phone, so that these strange numbers can be intercepted. In addition, I have to think about where I am, and the information bound to the third party. If those third-party information is not very popular and unreliable, I suggest deleting it to avoid information leakage as much as possible.