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It’s remnants from a time where security wasn’t a concern. The original intent of the From: field in email was that it’s definitive, but now it’s just a legacy
by colejohnson66 5y ago
It’s remnants from a time where security wasn’t a concern. The original intent of the From: field in email was that it’s definitive, but now it’s just a legacy field that many systems ignore because it’s fakeable.
- achow 5y agoIs it because earlier there was no display of numbers (ex in rotary phones)?
- colejohnson66 5y agoPossibly, but I'd wager more that it was due to Bell owning the entire network, so they knew that any "from" numbers were correct. If I'm reading Wikipedia right, SS7, which is still supported today, was created all the way back in 1975![0] Bell wasn't broken up until 1982.[1] [0]: https://en.wikipedia.org/wiki/Signalling_System_No._7 https://en.wikipedia.org/wiki/Signalling_System_No._7 [1]: https://en.wikipedia.org/wiki/Breakup_of_the_Bell_System https://en.wikipedia.org/wiki/Breakup_of_the_Bell_System