At a judge alone general court-martial, appellant was convicted, in accordance with his pleas, of two specifications of using cocaine and, contrary to his pleas, of one specification of soliciting a fellow officer to be derelict in his duties, in violation of, respectively, Articles 112a and 134 of the Uniform Code of Military Justice (UCMJ), 10 U.S.C. §§ 912a and 934. Appellant was sentenced to confinement for six months, total forfeiture of all pay and allowances, a $2000.00 fine, and dismissal from the Naval Service. The convening authority approved the sentence as adjudged and, in accordance with a pretrial agreement, suspended all confinement for a period of two years from the date of trial.
The assignments of error for review by this Court relate solely to the guilty finding under the Article 134, UCMJ, charge of soliciting another to commit an offense. The facts underlying both the assignments and the charge are briefly summarized below.
Shortly after submitting a urine sample for urinalysis, appellant, on or about 20 October 1986, contacted the officer in his squadron responsible for the collection and custody of urine samples, Lieutenant Junior Grade Anderson, and asked him if he would replace appellant’s sample with a new sample. Lieutenant Junior Grade Anderson, however, would not permit the substitution of the appellant’s sample and *781that sample then tested positive for cocaine. In light of his predicament, appellant retained a civilian attorney in early November and informed him of this positive urinalysis as well as an earlier one.1 The appellant confidentially revealed to the attorney as part of their attorney-client relationship the fact that he had solicited Anderson to exchange his urine samples.
On 19 November at an official Navy reception on board the Norfolk Naval Base, appellant’s civilian attorney, in a conversation with the assistant staff judge advocate for the general court-martial authority over appellant’s command, revealed appellant’s confidential communication concerning his solicitation of Anderson.2 Prior to this unauthorized disclosure by the civilian attorney of his client’s confidences, the Government had absolutely no knowledge of appellant’s solicitation of Anderson. The assistant staff judge advocate immediately repeated the conversation to his superior, the staff judge advocate, who, in turn, relayed the confidence to the appellant’s commanding officer for further investigation. The next day, armed with this revelation, the commanding officer asked Anderson if there was anything further he had to add with respect to the collection of appellant’s urine sample and, in response, Anderson recounted the details of appellant’s solicitation. Based on these events, the appellant was charged with the solicitation offense in addition to the prior drug offenses.
Prior to arraignment, appellant’s new civilian attorney3 moved to suppress the Government’s evidence on the solicitation specification on the basis that it was obtained in violation of the attorney-client relationship and in abrogation of the appellant’s sixth amendment right to the effective assistance of counsel. The appellant’s evidence on this motion consisted of a stipulation of fact that prior to his attorney’s unauthorized disclosure the Government possessed no knowledge that the accused had solicited Anderson to commit an offense and, furthermore, the commanding officer would not have approached Anderson but for the information received from appellant’s former attorney via the staff judge advocate. Appellate Exhibit III.
The sole evidence presented by the Government to defeat appellant’s motion was the testimony of Anderson. Anderson acknowledged that he had not reported to anyone the solicitation by the appellant, who was his friend, during the entire 30-day period following the solicitation and only did so when questioned by his commanding officer. He further acknowledged that he originally had no intention of ever reporting it but, when the test came back positive, thought “well, maybe I should say something.” R. 12. Anderson vacillated but finally decided, according to his testimony, that he would come forward when the right circumstances occurred. Notwithstanding this testimony, however, 30 days had passed since the solicitation, and he had not yet determined to whom he would report the incident, nor had he determined what the “right circumstance” would be until questioned by his commanding officer. Finally, on cross-examination, Anderson admitted that after informing the commanding officer of the solicitation, he was counseled concerning his failure to report the incident earlier and received a non-punitive letter of caution for not having done so.
Despite the less than convincing testimony of Anderson and the stipulation of fact, the military judge denied appellant’s motion to suppress the evidence finding, inter alia, that “the evidence of the solicitation offense, with reasonable probability, would *782have been discovered in the due course of any investigation.” R. 24.
Before this Court, appellant raises the following assignments of error:
I
THE VIOLATION OF THE ATTORNEY-CLIENT PRIVILEGE REQUIRES THE DISMISSAL OF CHARGE II AND ITS SPECIFICATION.
II
APPELLANT WAS DENIED EFFECTIVE ASSISTANCE OF COUNSEL.
In essence, the appellant asserts that his attorney’s unauthorized disclosure to the Government of his confidential communication 4 led directly to the solicitation charge, and thus constituted ineffective assistance of counsel in denial of his sixth amendment rights. We agree. See United States ex rel. Shiflet v. Lane, 625 F.Supp. 677 (N.D. Ill.1985), rev’d, 815 F.2d 457 (7th Cir. 1987);5 Cf. United States v. McCluskey, 6 U.S.C.M.A. 545, 20 C.M.R. 261 (1955).
In McCluskey the accused had consulted with a judge advocate regarding the legal aspects of his first and second marriages. Subsequently, the same judge advocate was appointed trial counsel to prosecute the accused on bigamy and other charges. In preparing for trial, the judge advocate drafted messages requesting that depositions be taken from relatives of the accused’s first wife to establish certain elements of the offense of bigamy and addressed additional correspondence to certain officials regarding aspects of the accused’s first marriage. Shortly thereafter, the judge advocate was relieved as trial counsel and thus did not prosecute the accused when his case came up for trial. In dismissing the charges affected by the breach of the confidential relationship, the Court of Military Appeals found that the judge advocate utilized the confidences tendered him in an effort to obtain evidence of sufficient weight for the Government to successfully prosecute his former client.
We view the McCluskey Court’s reversal as not resting on the judge advocate’s conflict of interest, but rather on the principle that evidence developed as a consequence of a breach of the attorney-client relationship may not be used to convict the client. In absence of such a principle, the accused would be wronged in law but the law would provide no effective remedy. Even more important, the primary purpose behind the confidentiality of the attorney-client relationship would be defeated.6 As stated in United States v. Fair, 2 U.S.C.M.A. 521, 10
*783C.M.R. 19 (1953), the principle of confidentiality was “designed to encourage full and unrestrained communication between client and attorney.” It exists “for the purpose of providing a client with assurances that he may disclose all relevant facts to his attorney safe from fear that his confidences will return to haunt him.” United States v. Turley, 8 U.S.C.M.A. 262, 24 C.M.R. 72 (1957), citing United States v. Marrelli, 4 U.S.C.M.A. 276, 15 C.M.R. 276 (1954). See also United States v. Green, 5 U.S.C.M.A. 610, 18 C.M.R. 234 (1955). Thus, a holding by this Court affirming the conviction based on evidence directly derived from an attorney’s breach of the attorney-client relationship would countermand the purpose behind protecting such confidences and could only serve to discourage clients from the free and full disclosure of facts. This consequence would be both abhorrent and contrary to the interests of justice. It would also fly in the face of the “zealous” endeavors of the Court of Military Appeals to safeguard and strengthen the confidences of the client arising from the attorney-client relationship. United States v. Turley, 24 C.M.R. at 75.
Our decision to set aside the findings of guilty as to Charge II and its Specification is based on the denial of effective assistance of counsel guaranteed by the sixth amendment to the United States Constitution.7 See Maine v. Moulton, 474 U.S. 159, 106 S.Ct. 477, 88 L.Ed.2d 481 (1985).
I
It is generally recognized that before an accused can be denied the right to effective assistance of counsel, the right to counsel must first attach under the sixth amendment. See Estelle v. Smith, 451 U.S. 454, 101 S.Ct. 1866, 68 L.Ed.2d 359 (1981). Prior to United States v. Wattenbarger, 21 M.J. 41 (C.M.A.1985), the sixth amendment right to counsel did not attach in the military until preferral of charges. Wattenbarger, 21 M.J. at 43, citing United States v. Adams, 21 U.S.C.M.A. 401, 405, 45 C.M.R. 175, 179 (1972); and United States v. Moore, 4 U.S.C.M.A. 482, 486, 16 C.M.R. 56, 60 (1954). In Wattenbarger, the Court of Military Appeals held that “the test for sixth amendment purposes is whether adversary judicial proceedings have been instituted against a subject,” even though charges had not yet been preferred. Wattenbarger, 21 M.J. at 44. See also Moran v. Burbine, 475 U.S. 412, 106 S.Ct. 1135, 89 L.Ed.2d 410 (1986) (by its very terms [the sixth amendment] is applicable only when the Government’s role shifts from investigation to accusation). Id., 475 U.S. at 430, 106 S.Ct. at 1146.
In the case sub judice, the breach of the attorney-client relationship forming the basis of the ineffective assistance of counsel claim occurred on 19 November. We conclude that, despite preferral date of 25 November, the Government’s role had shifted from investigation to accusation and that adversary proceedings had been instituted against the appellant prior to the date of counsel’s offending disclosure on 19 November so that his sixth amendment right to counsel had legally attached.
We derive the foregoing conclusion from both the nature of appellant’s offenses and the documents of record. Appellant had tested positive twice on urinalysis tests and these results were in the hands of the Government prior to his retaining civilian counsel in early November. See Attachment 1 to Appellate Exhibit I. Thus, at the time of the attorney’s unauthorized disclosure, the appellant was not a suspect in an *784investigation but rather the targeted object of forthcoming proceedings of an adversarial nature. Although his commanding officer had not yet reached a final decision as to the disposition of the yet to be preferred “charges,” he had already begun to exercise his prosecutorial discretion. Furthermore, the general court-martial convening authority over the appellant’s case had been made aware of the situation. Appellate Exhibit II (Government’s Response to Defense Motion to Suppress). Finally, when the appellant’s commanding officer approached Anderson concerning the matter, they both considered that a urinalysis case already existed against the appellant. Appellate Exhibit II. Under these circumstances we cannot but conclude that “adversary judicial proceedings had been instituted against the accused,” even though the formal preferral of charges occurred a few days later.
II
Having determined that the appellant’s right to counsel had already attached, we next turn to the issue of whether the offending disclosure constituted ineffective assistance of counsel in violation of appellant’s sixth amendment rights. Strickland v. Washington, 466 U.S. 668, 104 S.Ct. 2052, 80 L.Ed.2d 674 (1984); United States v. Scott, 24 M.J. 186 (C.M.A. 1987). In resolving this issue, we initially find that the appellant’s communication to his civilian counsel concerning the solicitation of Anderson was confidential and his counsel’s disclosure of the communication to the Government was unauthorized and thus violated the attorney-client relationship to the detriment of the appellant.
The Government argues, as it did in United States ex rel. Shiflet v. Lane, that no sixth amendment violation can occur where Government officials have not made an affirmative intrusion into the privileged relationship between client and attorney. We disagree, and conclude, as did the lower court in Shiflet, that intentional Government intrusion has never been, nor should it be, the only benchmark of a sixth amendment claim.8 “Where government use of privileged information obtained by windfall causes extreme prejudice to the defendant and renders his right to counsel virtually meaningless a constitutional problem arises.” Shiflet, 625 F.Supp. at 686. Accordingly, even though the Government in the case sub judice obtained the confidential information through no improper conduct of its own, a sixth amendment violation occurred since the disclosure proved to be extremely prejudicial to the defendant.9 The extreme prejudice to the appellant is patently clear since, absent the disclosure, the Government would not have questioned Anderson and thus would not have procured the only evidence in support of the charge and conviction of appellant on the solicitation offense. Furthermore, contrary to the opinion of the military judge, we conclude there exists no reasonable probability that the offense under Charge II would have otherwise been discovered. That is, we have no confidence that Anderson would have independently come forward to report the solicitation, particularly since he had not done so for some 30 days after it had transpired.
Thus, we conclude that the appellant must prevail on his ineffective assistance of counsel claim as to Charge II since he has established both incompetence and prejudice under the test set forth by the Supreme Court and adopted by the United States Court of Military Appeals:
*785First, the defendant must show that counsel’s performance was deficient. This requires showing that counsel made errors so serious that counsel was not functioning as the “counsel” guaranteed the defendant by the Sixth Amendment. Second, the defendant must show that the deficient performance prejudiced the defense. This requires showing that counsel’s errors were so serious as to deprive the defendant of a fair trial, a trial whose result is reliable.
Strickland v. Washington, 466 U.S. at 687, 104 S.Ct. at 2064; and United States v. Scott, 24 M.J. at 187.
Accordingly, we set aside the findings of guilty to Charge II and its specification and dismiss that charge. The remaining findings of guilty are affirmed. Upon reassessment of the sentence we set aside the fine of $2,000.00. Otherwise, we affirm the sentence as approved on review below including the dismissal from the Naval Service.10
Judge RUBENS concurs.