Which only proves your comment's parent's point even more.
{SWAT, pizza orders, etc} assume that the phone number that shows up on caller ID is authentication of the identity of the phone line on the other end. They could call back the number on caller ID to verify the original caller matched the person who picked up, but they don't.
Having knowledge of a Social Security number was assumed to be authentication, but it's increasingly obvious that such an authentication scheme is antiquated and was destined to fail from the beginning. When an identity thief can get a mortgage under my name with little more than credit bureau data on me, it costs only a little more than $15 to destroy my credit, my time, and my future because transactions don't have sufficient authentication.
These awfully designed authentication schemes will only magnify the problems as more companies (especially credit bureaus and data marketers) pass around data on me and make it easier for someone to buy it on demand.
>Having knowledge of a Social Security number was assumed to be authentication
No the people that designed and implemented Social Security knew it was not secure for identification purposes, the first few decades of the program even had "Not to be used for Identification" on the card.
Then the government, and financial industry got lazy and said "well since the majority of people already have these numbers assigned to them lets just use them for Identification as well" and made it a defacto National ID. Something it was never designed for, nor secure enough to be,
Keep in mind too that Caller ID is trivially blockable (and blocked caller id isn't remarkable enough to be super suspicious), and it's also easily within the capability of many of the 4chan/gg griefers to spoof "correct" Caller ID numbers as well.
Caller ID shouldn't be blockable, these days. It's a big ridiculous problem that we've defaulted to "you can intrude with communications anonymously" - and phone calls are definitely intrusive.
I'm pretty much a hair away from blocking all calls without caller ID at my house so I can reliably lock out the remaining spam callers.
{SWAT, pizza orders, etc} assume that the phone number that shows up on caller ID is authentication of the identity of the phone line on the other end. They could call back the number on caller ID to verify the original caller matched the person who picked up, but they don't.
Having knowledge of a Social Security number was assumed to be authentication, but it's increasingly obvious that such an authentication scheme is antiquated and was destined to fail from the beginning. When an identity thief can get a mortgage under my name with little more than credit bureau data on me, it costs only a little more than $15 to destroy my credit, my time, and my future because transactions don't have sufficient authentication.
These awfully designed authentication schemes will only magnify the problems as more companies (especially credit bureaus and data marketers) pass around data on me and make it easier for someone to buy it on demand.