-

USCIB: J3/'J03 

12 Janua:q l9S3 

TOP mmm' - S!CtJR!f'l DFOID'l'!ON 

HDIORANDY.JLFOR THE MEMBERS OF USCIB: 

Subject: Preparatima and Exchange or Reports on 

Possible Canpromiaea ot COllINT Succeaaea. 

1. The Director, NSA, has requested that the draft 

memorandum and message, Bnclaeurea 1 and 2, 11bich reJ>l.1' to 

SUSI.D's memorandum (Enclosure .3),, be submitted to USCIB 

members tor approval bJ' vote sheet. 

2. It is requested that your views be torwarclec:l to 

the Secretar.r by 16 January 195.3· 

~c.~ 

'H;~-J<ma 

Acting Executive Secret.ar;r, USCIB 

&I.closures - 3 

l. Draft Message to SUSID. 

2. Drat't Letter to SUSLO. 

3. SUSLO SerJ.al 000321 dtd 

17 Nov S2• 

USCIB: l'J/303 

Declassified and approved for release by NSA on 02-06-2014 pursuantto E.O. 1352a 

TOP SECRET 
-

PR<ll1 DIRNSA D'B.Aft/24 December 1952 

TO: SUSLO. IDMDCll 

WL---• 

BIUR SERIAL #11321DA'l'ED17 NOVDIBER 1952, uscm COHSIDEBB LSIB PROPOSAIS TO 

BB DASONABLB BASIS FOR EVENTUAL AGREF.llER'r IN POBH OF ANNEXURE TO BRUSA APPENDIX Bo I.SIB PROPOSALS, AS INTERPRETED BY USCIB, WCJJLD Har REQUIRE KXCHANOE 

OF DFORMA'lION WARDING BREACBF.S QF NATIONAL CCJID'1' SBCURITI BlllULA'l'IONS 

WHBN SUCH BRIACHBS CANNar BE PRESUMED TO HAVB CCllPIDIISED COMlNT CODEWOBDS OR 

TO BAVI IEV&Wm OOMINT SUCCBSSES. TO AVOID POSSIBLB MISUNDERS't.ANDING ON 

THIS POml', USCIB PBOPOSES BVISIONS TO DRAFT OF !HI MlllmJU. TB8SE PROPOSALS 

ARI BEING PORWARDED BY BAG • 

.Bnclosure 1 with USCIB 13/.30.3 dated 12 JanU&17 1953· 

TOP SECRET 
Smio.r u.s. Liaiscn Oi'licer 

Lend.en 

DRAF'r/Serial: 

• 

l. Retermce 18 made to WL • USCIB proposes that it the following atatsent is acceptable to LSIB, it should· be aQnexed to AppeJldix B to 

the BRUSA Agreement: 

(a) When it beccmea known to either parliJ' that an:r breach ot 

naticmal cmam securit7 regul.at1ans hu occurred and the breach can be. 

presumed to have canprcmised COJIDT codewords or to have revealed CCllINT 

aucceasea, the circumatanc• will be made known to the other pan7. 

(b) When 8Jr8 other !"actor *1oh oan be presumed to haYe Ccmpl'Omised COHINT codewords or to have revealed. COON'? successes beccmea known 

to either part.7. it ahall intorm the other ot the circumstances. 

(c) ·When evidence becomes available to either part7 that C<llINT 

codeworda, material, or eucceases have in ta~ been ccmpran:Lsed, that 

part7 shall tulJ,y inform the other. 

(d) Wbm a aigniticant change ocoun in 1"ore:l.p cS'1'Ptograpbic or 

a1gnal.a aecur1t7 and either pal'l;J' napecta with reasm that it be due to 

canpraniae ot 81.rT kind, that par1;7 shall reporla to the other, stating 

reaaans tor its suspicion; and each pan7 shall then keep the other fUlll' 

:llltormad ot &DJ' in.tormation that may ccmtim or disprove such auspicicm. 

2. USCIB ueumas that 1t LSIB agrees to the .foregoing, LSIB v.Ul 

arrange tor the producticn and dietribution ot the armexura. 

(Dral't) 

RALPH J • CANIIB 

Major General,. US ArmT 

Director 

.Enclosure 2 with USCIB 13/303 dated 12 JanU&17 19530 

TOP SECRET 
- we PF~~. lJ .l.!I u .I.'-~ ]eb 

Sel'1a1 000321 

17 Noledler 1952 

Me!+M4wu ror: ~. Nat!aall ~" A8f!lltlSJ' 

Sllbj1 PN,..Uoaa aid Emballge or Reports cm Pomd.ble Cmnpradaas ~ 

CClld.m ---

Ca) USCIB MemD uc ICM:Ja.319, ab~eet. as .,,,.., or rt Aupst 1952 

(b) SUSLO ~-· Lw-191 ot 15 ~ 1952 

(e) susr.o "'8•• tw-347 ~ l4 Navanber 1952 

1. 'l'be t6llold.Dg Napanse to zreteNllCG (a) Illa been NeeS.ftd 1'lm. the 

~· GCHQ• 

llJ.. LSIB hM taken -. ot uscm m.i.eu. ... Ro. 9 '~ tw ,,_,,,as 

poald.ble cmpi"Cli19e8 ot Ctlld.a\ ._....., • .an4 ot \be u..-nta 111.d.eh 

..,,..w its JF'i'il'&ett.m. TJM 1.foGRd ..,_., tll& ft8l7 ettetr *'9ld 

be lilde to deteot. ad :lmesU.pte• at tbl elrlleat, - det'1ldte OP1posaible 

ocmprcatae CJ? c:adnt auceess; ml tbal .f'Oftltl. ~· tor • aehll.tge ot ft~I bettieett \hi U.S. ml U.t. OD meh ccmpNlld.-• acf;ual. O&- ~. 

1ilOIJld be of mtua1 ~. 

2. Ta. ·~ and Re&nl&tieml tor the Secad.ta' ot S!gaal ISell:lgeneet isau.ed °bl' LatB Sn aoeCll.'dance v1.t.h AppmHz B to the EUSA 

---- at.ate capU.c!.~ that .,. ... 1'18 ot tboll9 ftgal&UOD9 llWSt be 

npol'ted to the Baud, whose age& ill thtll l'8llplet. la the ~. GCHQ. 

'flds pract.lee Jlas been wl1 G~ 1'f 11.1. ~ ml ftdp!ellts ot 

Cclldnt tor l9Cllll Us past. ~. _. ~ tlld.cb mtgtat 'be 

eaptoted to bin oanprc111daed. thtt Cmm!.S cadWda _. to blft 1'8MIL1.414 

Cml• weaeas haw -- N]JOlt,e4 to t.IMt U.S. ~ties cm 'be1aa'Jf ot 

LSIB. &at I.SIB wepts bt. these i-wU.ana _. t'* 8'il't1dentr 111 t.bem8el'N8 IDd do Id up'J'f.eit.]J' cowr tboaa eases to vtdeh uscm !al 4--

&\fimUm; 'llhlill a~ ohaqe aoeua in tOftd.gn ~c or 

dgnal• wiv ... no 5.n&JdiatA ~ 1. 8'f14en\ ror * J.ae•• a 

wbeD • poa!Ml!tr or dQipi'Oli4le mat be ....,w ani ~ !nnA!s,ated. 

3. LSIB tberetore JS'G,P088S U. tQU.ad.ng U a baa1a ot ~ 'bltMee!t 

Ute \w Doud•• 

(a) 1'1llll llW' bftleh ot .u.at oam:tm eecad.t.T Ngulat4all or _, 

other ~ w!d.eh ca be pN8'1118cl to bl.ft ~ oams.nt eocftNlrJllds 

cir to have 1"9Y81lled Can1nt meces8D8., becClleB lCBDm to either ~ 1t 

abal1 :lntotm the other; 

(b) Wblr1 nUence becames amiable to e!tber pvt;.y that l'ladnt;. 

eoclewmds11 ~, GI" IUC96888 Una in tact. 'beer1 cOimpNldNd,, that 

l*'f'¥ ahaU 1ntcmn the other; 
.. 

wt.Y~ 

REF ID:A59774 

9 lFSP ~:1£b:KJ£' ------•eSJsyj/jeb 

Ser1a1. 000321 

EO 3.3(h)(2) 

PL 86-36/50 USC 3605 

17 MoNlabe1" 1952 

S.Jt ~ 1111 Eahlnga Of Repafta en Poulbla Canpftlld.tles Of 

Ccnf.14 Saaeeeees 

--~~~-~------~--------~-~~-----~----

4. 

~ 

L8ID woal4 maast that, u the aboN be acceptable to uscm a a 

1-Bh tor~ betwen the two Bcmda mil tor......., eaellaages, !t. daoal4 be &pj;8itled u • ..,... to Appeft'l5x B to the 

!RUSA~.· 

TOP SECRET