I do suspect that regardless of whether these incidents are accidental due to the  typist's  misperception  of the previous person's  message, or due to being  sleepy, misclicking, or due to  software-malfunction,  hardware-malfunction, or any combination of these & other factors,..... There can be, should be, must be created, several security measures to reduce it.

[[ hopiakuta  Please do  sign  your  signature  on your  message.  %7e%7e   Thank You. -]]