Strathclyde Police have given security advice to the three members of the SFA Judicial Panel following their decision to punish Rangers.
The administration-hit Glasgow giants were handed a £160,000 fine and 12-month embargo on registering players aged over 17 by the panel after being found guilty of five charges in relation to their finances and the appointment of Craig Whyte as chairman.
An SFA statement on Wednesday night said that the three panel members in question had been subjected to "abusive and threatening communication" after their identities were "compromised".
A Scottish FA spokesperson said: "We are deeply concerned that the safety and security of Judicial Panel members appointed to a recent Tribunal has been compromised by a wholly irresponsible betrayal of confidential information.
"The Judicial Panel consists of volunteers from across the spectrum of sport and business in Scotland. They are appointed on the basis of anonymity yet all three panel members have reported intrusion into their personal and work lives, including abusive and threatening communication.
"This has been extended to directors of the Scottish FA, whose private details have been published on internet sites and who have, themselves, been victims of abusive communication.
"This culminated tonight in a visit by Strathclyde Police, who are taking seriously the threats made towards the individuals involved. We are thankful for their advice and support in these matters."
Rangers manager Ally McCoist had claimed the judicial panel's decision could "kill" the club and called for the three members to be named.
McCoist told Rangers TV: "Who are these people? I want to know who these people are.
"I'm a Rangers supporter and the Rangers supporters and the Scottish public deserve to know who these people are, people who are working for the SFA.
"Make no mistake about it, this is an SFA decision.
"They have appointed the panel so therefore they are working for the SFA, but who are they?"
The Ibrox boss added: "In terms of our supporters, again they have received another kicking and we just feel it's time to start fighting back.
"You can guarantee we will be fighting back."
Rangers fans' groups have raised the prospect of protests outside Hampden and boycotts of SFA sponsors, while calling on players to boycott the national team.
SFA chief executive Stewart Regan on Tuesday clarified the disciplinary process, saying the judicial panel tribunal, which sat in a three-day hearing last week, was an independent body made up of three members appointed from a list of more than 100.
Regan stressed the process was approved unanimously by member clubs last year and the SFA had acted on the advice of clubs to implement a "robust disciplinary system that reflected the demands of the modern game".
Rangers' administrators have called for an immediate appeal hearing as they challenged the punishment, which they say has undermined attempts to sell the club, and Regan said the SFA would act with "integrity and the best interests of the game at heart".
The bulk of the monetary punishment and the transfer embargo came for a disrepute charge which apparently centred on the non-payment of tax since Whyte took over in May last year.
