**One Time Pads and Vulnerability to "*Bit-Flip*" Attacks:**

I've seen it in this group, and apparently there are a (small) number of voices on the 'net opining that those relying on OTP are essentially "***amateurs***" (or otherwise oblivious) to the possibility of "***bit-flip***" being a fatal flaw in OTP and they should **NOT** be used. Given my own professional experience using One Time Pads, I found these claims astonishing and was interested in learning if there was chink in the OTP armor rendering it an insecure system to protect data secrecy.

"***Bit Flip***" in the context of these claims being that the OTP message can be tampered with in transit- that there's no validation the recipient has received ***exactly*** the message that was originally sent. But even tampering doesn't imply that the attacker can read the text they tampered with sans a key. So as far as I can see at this point, the secrets still remain protected.

Further, in order to tamper with the contents of the OTP encrypted message would imply that the attacker knew exactly "***when***", "***where***", "***how***" and most importantly "***who***" the message was being transmitted to. Those decrying ***One Time Pads*** as an insecure, flawed system are thin on details how an attacker would obtain this key these key pieces of data.

Such a claim is bold and it contravenes accepted wisdom that OTP encrypted messages ***are*** secure & unbreakable- if the system is operated correctly of course. ***Am I missing something here?***