Phone numbers change all the time. Some people have more than 2 phones. Phone numbers tied too names become less trustworthy when names change.
The reason an SSN exists is the same reason why it is one of the the best identifiers of a person in the US.
Nation state and domestic hackers look for these as a highly prized commodity for this reason as well. They can be used to find other records containing people. You may recall the Chinese hackers who exfiltrated the SSNs of US military personnel not too long ago.
The reason an SSN exists is the same reason why it is one of the the best identifiers of a person in the US.
Nation state and domestic hackers look for these as a highly prized commodity for this reason as well. They can be used to find other records containing people. You may recall the Chinese hackers who exfiltrated the SSNs of US military personnel not too long ago.