Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site axiom.UUCP Path: utzoo!linus!axiom!smk From: smk@axiom.UUCP (Steven M. Kramer) Newsgroups: net.consumers Subject: Re: AT&T "Calling Card" Message-ID: <560@axiom.UUCP> Date: Tue, 10-Apr-84 17:26:29 EST Article-I.D.: axiom.560 Posted: Tue Apr 10 17:26:29 1984 Date-Received: Wed, 11-Apr-84 01:58:09 EST References: <663@bbncca.ARPA> Organization: Axiom Technology, Newton MA Lines: 10 I read in TIME mag where the info you will have in the future may be only the 4 digit check. You have to supply your phone number as the key. This certainly is much better than the alternative. BTW -- since there are 'only' 10000 possible check digits (only -- for a micro) is the acct shutdown after a number of unsuccessful tries? or did I just goof and spill the beans on YASP (Yet Another Security Problem)? -- --steve kramer {allegra,genrad,ihnp4,utzoo,philabs,uw-beaver}!linus!axiom!smk (UUCP) linus!axiom!smk@mitre-bedford (MIL)