Hibernian have vowed to report Colchester to the Football Association for publicly announcing their efforts to sign Rob Jones.
The SPL outfit spurned a £100,000 approach from the Us for their skipper on Tuesday.
The League One club had announced the bid on their official website, much to the annoyance of their Scottish counterparts.
Hibs were therefore forced to break their policy of not commenting on transfers as they sought to assure their supporters that no deal would be brokered.
Colchester had turned their attention to Jones after missing out on Wycombe defender Mike Williamson, a move which was also announced through their website.
"Given the 'confidential' marking of the incoming fax, it was a surprise to learn that Colchester United had subsequently posted a picture of the Hibernian player on its website along with a story stating that a 'six-figure' bid had been lodged for the player," read a statement on Hibernian's official website.
"The story fails to mention that the offer was immediately rejected.
"The story also appeared on the Colchester United website the day after another story about a 'six-figure bid' for the centre-half of another club was posted on the same website."
The statement added: "Hibernian intends to report the actions of Colchester United to the Football League and to the Football Association."